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<P>Contrariamente a lo que se pueda pensar, detr=E1s de los c=E1lculos y =

recomendaciones sobre alumbrado de v=EDas p=FAblicas existe un =
importante desarrollo=20
te=F3rico sobre diferentes temas (pavimentos, deslumbramiento, confort =
visual,=20
etc.). Afortunadamente, hoy d=EDa estos c=E1lculos est=E1n muy =
mecanizados y no es=20
necesario tener profundos conocimientos en la materia para realizarlos. =
No=20
obstante, es recomendable tener nociones de algunos de ellos para =
comprender=20
mejor la mec=E1nica de c=E1lculo. As=ED tras estudiar algunos <A =
class=3Drojo=20
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#ilumin">conc=
eptos=20
previos de iluminaci=F3n</A>, veremos <A class=3Drojo=20
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#disp">soluci=
ones=20
pr=E1cticas</A> de alumbrado viario y los <A class=3Drojo=20
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#nivel">nivel=
es de=20
iluminaci=F3n</A> recomendados.</P><A name=3Dilumin></A>
<H3>Iluminancia <A=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/magnitud.html#Ilumin">=
<IMG=20
height=3D32 alt=3D"Enlace con iluminancia"=20
src=3D"http://edison.upc.edu/curs/llum/graf_pag/ic116b.gif" width=3D45=20
border=3D0></A></H3>
<P>La iluminancia indica la cantidad de luz que llega a una superficie y =
se=20
define como el <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/magnitud.html#Flujo_lu=
m">flujo=20
luminoso</A> recibido por unidad de superficie:</P>
<P class=3Dcentro><IMG height=3D30=20
src=3D"http://edison.upc.edu/curs/llum/fotometria/graficos/mag1.gif" =
width=3D45></P>
<P>Si la expresamos en funci=F3n de la <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/magnitud.html#Intensid=
_lum">intensidad=20
luminosa</A> nos queda como:</P>
<TABLE width=3D400 align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D177 alt=3D"Iluminancia sobre la calzada"=20
      =
src=3D"http://edison.upc.edu/curs/llum/fotometria/graficos/farol1.gif"=20
      width=3D168></TD>
    <TD><IMG height=3D44=20
      src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alp1.gif" =

    width=3D136></TD></TR></TBODY></TABLE>
<P>donde I es la intensidad recibida por el punto P en la direcci=F3n =
definida por=20
el par de =E1ngulos (C,<IMG height=3D16=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma.gif" =
width=3D12>) y h=20
la altura del foco luminoso. Si el punto est=E1 iluminado por m=E1s de =
una l=E1mpara,=20
la iluminancia total recibida es entonces:</P>
<P class=3Dcentro><IMG height=3D52=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alp2.gif"=20
width=3D180></P><A name=3Dlumin></A>
<H3>Luminancia&nbsp;&nbsp;<A=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/magnitud.html#lumin"><=
IMG=20
height=3D32 alt=3D"Enlace con luminancia"=20
src=3D"http://edison.upc.edu/curs/llum/graf_pag/ic116b.gif" width=3D45=20
border=3D0></A></H3>
<P>La luminancia, por contra, es una medida de la luz que llega a los =
ojos=20
procedente de los objetos y es la responsable de excitar la retina =
provocando la=20
visi=F3n. Esta luz proviene de la reflexi=F3n que sufre la iluminancia =
cuando incide=20
sobre los cuerpos. Se puede definir, pues, como la porci=F3n de =
intensidad=20
luminosa por unidad de superficie que es reflejada por la calzada en =
direcci=F3n=20
al ojo.</P>
<TABLE width=3D400 align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D177 alt=3D"Luminancia de la calzada"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/farol3.gif"=20
      width=3D207 align=3Dright></TD>
    <TD>L =3D q(<IMG height=3D14=20
      src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/beta.gif" =

      width=3D8>,<IMG height=3D16=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma.gif"=20
      width=3D12>) =B7 E<SUB>H</SUB></TD></TR></TBODY></TABLE>
<P>donde q es el coeficiente de luminancia en el punto P que depende =
b=E1sicamente=20
del =E1ngulo de incidencia&nbsp;<IMG height=3D16=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma.gif" =
width=3D12> y=20
del =E1ngulo entre el plano de incidencia y el de =
observaci=F3n&nbsp;<IMG height=3D14=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/beta.gif" =
width=3D8>. El=20
efecto del =E1ngulo de observaci=F3n&nbsp;<IMG height=3D12=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alfa.gif" =
width=3D10> es=20
despreciable para la mayor=EDa de conductores (automovilistas con campo =
visual=20
entre 60 y 160 m&nbsp; por delante y una altura de 1,5 m sobre el suelo) =
y no se=20
tiene en cuenta. As=ED pues, nos queda:</P>&nbsp;=20
<P class=3Dcentro><IMG height=3D48=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alp3.gif" =
width=3D172></P>
<P>Por comodidad de c=E1lculo, se define el termino:</P>
<P class=3Dcentro><IMG height=3D27=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alp4.gif" =
width=3D149></P>
<P>Quedando finalmente:</P>
<P class=3Dcentro><IMG height=3D52=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alp5.gif" =
width=3D134></P>
<P>Y si el punto est=E1 iluminado por m=E1s de una l=E1mpara, =
resulta:</P>
<P class=3Dcentro><IMG height=3D52=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/alp6.gif" =
width=3D168></P>
<P>Los valores de <B>r</B>(<IMG height=3D14=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/beta.gif" =
width=3D8>,<IMG=20
height=3D16 =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma.gif"=20
width=3D12>) se encuentran tabulados o incorporados a programas de =
c=E1lculo y=20
dependen de las caracter=EDsticas de los <A class=3Dverde=20
href=3D"http://edison.upc.edu/curs/llum/exterior/pavim.html">pavimentos</=
A>=20
utilizados en la v=EDa.</P>
<H3>Criterios de calidad</H3>
<P>Para determinar si una instalaci=F3n es adecuada y cumple con todos =
los=20
requisitos de seguridad y visibilidad necesarios se establecen una serie =
de=20
par=E1metros que sirven como criterios de calidad. Son la luminancia =
media=20
(L<SUB>m</SUB>, L<SUB>AV</SUB>), los <A class=3Drojo=20
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#coefs">coefi=
cientes=20
de uniformidad</A> (U<SUB>0</SUB>, U<SUB>L</SUB>), el <A class=3Drojo=20
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#deslum">desl=
umbramiento</A>=20
(TI y G) y el <A class=3Drojo=20
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#SR">coeficie=
nte de=20
iluminaci=F3n de los alrededores</A> (SR).</P><A name=3Dcoefs></A>
<H4>Coeficientes de uniformidad</H4>
<P>Como criterios de calidad y evaluaci=F3n de la uniformidad de la =
iluminaci=F3n en=20
la v=EDa se analizan el rendimiento visual en t=E9rminos del coeficiente =
global de=20
uniformidad <B>U<SUB>0</SUB></B> y la comodidad visual mediante el =
coeficiente=20
longitudinal de uniformidad <B>U<SUB>L</SUB></B> (medido a lo largo de =
la l=EDnea=20
central).</P>
<P class=3Dcentro>U<SUB>0</SUB> =3D L<SUB>min</SUB> / L<SUB>m</SUB><IMG =
height=3D1=20
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif" width=3D70> =
U<SUB>L</SUB>=20
=3D L<SUB>min</SUB> / L<SUB>max</SUB></P><A name=3Ddeslum></A>
<H4>Deslumbramiento</H4>
<P>El deslumbramiento producido por las farolas o los reflejos en la =
calzada, es=20
un problema considerable por sus posibles repercusiones. En s=ED mismo, =
no es m=E1s=20
que una sensaci=F3n molesta que dificulta la visi=F3n pudiendo, en casos =
extremos,=20
llegar a provocar ceguera transitoria. Se hace necesario, por tanto, =
cuantificar=20
este fen=F3meno y establecer unos criterios de calidad que eviten estas=20
situaciones peligrosas para los usuarios.</P>
<P><A name=3Ddmolesto></A>Se llama <B>deslumbramiento molesto</B> a =
aquella=20
sensaci=F3n desagradable que sufrimos cuando la luz que llega a nuestros =
ojos es=20
demasiado intensa. Este fen=F3meno se eval=FAa de acuerdo a una escala =
num=E9rica,=20
obtenida de estudios estad=EDsticos, que va del deslumbramiento =
insoportable al=20
inapreciable.</P>
<TABLE class=3Ddatos width=3D"63%" align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH>G</TH>
    <TH>Deslumbramiento</TH>
    <TH>Evaluaci=F3n del alumbrado</TH></TR>
  <TR>
    <TD>1</TD>
    <TD>Insoportable</TD>
    <TD>Malo</TD></TR>
  <TR>
    <TD>3</TD>
    <TD>Molesto</TD>
    <TD>Inadecuado</TD></TR>
  <TR>
    <TD>5</TD>
    <TD>Admisible</TD>
    <TD>Regular</TD></TR>
  <TR>
    <TD>7</TD>
    <TD>Satisfactorio</TD>
    <TD>Bueno</TD></TR>
  <TR>
    <TD>9</TD>
    <TD>Inapreciable</TD>
    <TD>Excelente</TD></TR></TBODY></TABLE>
<P>Donde la <A class=3Dverde=20
href=3D"http://edison.upc.edu/curs/llum/exterior/dmoles.html">f=F3rmula =
de G</A> se=20
calcula a partir de caracter=EDsticas de la luminaria y la =
instalaci=F3n.</P>
<P>Actualmente no se utiliza mucho porque se considera que siempre que =
no se=20
excedan los l=EDmites del deslumbramiento perturbador este est=E1 bajo =
control.</P>
<P><A name=3Ddper></A>El <B>deslumbramiento perturbador</B> se produce =
por la=20
aparici=F3n de un velo luminoso que provoca una visi=F3n borrosa, sin =
nitidez y con=20
poco contraste, que desaparece al cesar su causa. No obstante, este =
fen=F3meno no=20
lleva necesariamente asociado una sensaci=F3n inc=F3moda como el =
deslumbramiento=20
molesto. Para evaluar la p=E9rdida de visi=F3n se utiliza el criterio =
del <A=20
class=3Dverde=20
href=3D"http://edison.upc.edu/curs/llum/exterior/dpertu.html">incremento =
de=20
umbral</A> (TI) expresado en tanto por ciento:</P>
<P class=3Dcentro><IMG height=3D49=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/ti.gif" =
width=3D109></P>
<P>donde L<SUB>v</SUB> es la luminancia de velo equivalente y =
L<SUB>m</SUB> es=20
la luminancia media de la calzada.</P><A name=3DSR></A>
<H4>Coeficiente de iluminaci=F3n en los alrededores</H4>
<P>El coeficiente de iluminaci=F3n en los alrededores (<I>Surround =
Ratio,</I> SR)=20
es una medida de la iluminaci=F3n en las zonas lim=EDtrofes de la v=EDa. =
De esta=20
manera se asegura que los objetos, veh=EDculos o peatones que se =
encuentren all=ED=20
sean visibles para los conductores. SR se obtiene calculando la =
iluminacia media=20
de una franja de 5 m de ancho a cada lado de la calzada.</P>
<P class=3Dcentro><IMG height=3D98 alt=3DSR=20
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/sr.gif" =
width=3D161=20
border=3D0></P><A name=3Dluminar></A>
<H3>L=E1mparas y luminarias&nbsp;<A=20
href=3D"http://edison.upc.edu/curs/llum/lamparas/lamp0.html"><IMG =
height=3D32=20
alt=3D"Enlace con l=E1mparas y luminarias"=20
src=3D"http://edison.upc.edu/curs/llum/graf_pag/ic116b.gif" width=3D45=20
border=3D0></A></H3>
<P>Las <B>l=E1mparas</B> son los aparatos encargados de generar la luz. =
En la=20
actualidad, en alumbrado p=FAblico se utilizan las <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/lamparas/ldesc1.html">l=E1mparas =
de=20
descarga</A> frente a las <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/lamparas/lincan.html">l=E1mparas =

incandescentes</A> por sus mejores prestaciones y mayor ahorro =
energ=E9tico y=20
econ=F3mico. Concretamente, se emplean las l=E1mparas de <A class=3Dazul =

href=3D"http://edison.upc.edu/curs/llum/lamparas/ldesc2.html#lvmap">vapor=
 de=20
mercurio a alta presi=F3n</A> y las de <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/lamparas/ldesc2.html#lvsbp">vapor=
 de sodio=20
a baja</A> y <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/lamparas/ldesc2.html#lvsap">alta =

presi=F3n</A>.</P>
<P>Las <B>luminarias</B>, por contra, son aparatos destinados a alojar, =
soportar=20
y proteger la l=E1mpara y sus elementos auxiliares adem=E1s de =
concentrar y dirigir=20
el flujo luminoso de esta. Para ello, adoptan diversas formas aunque en=20
alumbrado p=FAblico predominan las de flujo asim=E9trico con las que se =
consigue una=20
mayor superficie iluminada sobre la calzada. Las podemos encontrar =
montadas=20
sobre postes, columnas o suspendidas sobre cables transversales a la =
calzada, en=20
catenarias colgadas a lo largo de la v=EDa o como proyectores en plazas =
y=20
cruces.</P>
<P>Antiguamente las luminarias se clasificaban seg=FAn las =
denominaciones cut-off,=20
semi cut-off y non cut-off.</P>
<TABLE class=3Ddatos width=3D"94%" align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH rowSpan=3D2>&nbsp;</TH>
    <TH colSpan=3D2>M=E1ximo valor permitido de la intensidad emitida =
para un=20
      =E1ngulo de elevaci=F3n</TH>
    <TH rowSpan=3D2>Direcci=F3n de la intensidad m=E1xima</TH></TR>
  <TR>
    <TH>80 =BA</TH>
    <TH>90 =BA</TH></TR>
  <TR>
    <TH>Cut-off</TH>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      30 cd /1000 lm</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      10 cd /1000 lm&nbsp;</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      65 =BA</TD></TR>
  <TR>
    <TH>Semi cut-off</TH>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      100 cd /1000 lm</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      50 cd /1000 lm&nbsp;</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      75 =BA</TD></TR>
  <TR>
    <TH>Non cut-off</TH>
    <TD>&gt; 100 cd /1000 lm</TD>
    <TD>&gt; 50 cd /1000 lm</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      90=BA</TD></TR></TBODY></TABLE><BR><BR>
<P class=3Dcentro>Clasificaci=F3n para luminarias de alumbrado p=FAblico =
(CIE=20
1965)</P>
<P>En la actualidad, las luminarias se clasifican seg=FAn tres =
par=E1metros=20
(alcance, dispersi=F3n y control) que dependen de sus caracter=EDsticas=20
fotom=E9tricas. Los dos primeros nos informan sobre la distancia en que =
es capaz=20
de iluminar la luminaria en las direcciones longitudinal y transversal=20
respectivamente. Mientras, el control nos da una idea sobre el =
deslumbramiento=20
que produce la luminaria a los usuarios.</P><A name=3Dalcance></A>
<P>El <B>alcance</B> es la distancia, determinada por el =
=E1ngulo&nbsp;<IMG=20
height=3D16 =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma3.gif"=20
width=3D31>, en que la luminaria es capaz de iluminar la calzada en =
direcci=F3n=20
longitudinal. Este =E1ngulo se calcula como el valor medio entre los dos =
=E1ngulos=20
correspondientes al 90% de I<SUB>MAX</SUB>&nbsp; que corresponden al =
plano donde=20
la luminaria presenta el m=E1ximo de la intensidad luminosa.</P>
<TABLE width=3D"94%">
  <TBODY>
  <TR>
    <TD><IMG height=3D191=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/viasp1.gif"=20
      width=3D318><BR>Alcance longitudinal</TD>
    <TD>
      <TABLE class=3Ddatos2 width=3D"85%" border=3D1>
        <TBODY>
        <TR>
          <TH>Alcance corto</TH>
          <TD><IMG height=3D16=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma3.gif"=20
            width=3D31> &lt; 60=BA</TD></TR>
        <TR>
          <TH>Alcance intermedio</TH>
          <TD>60=BA&nbsp;<IMG height=3D12=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
            width=3D8><IMG height=3D16=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma3.gif"=20
            width=3D31><IMG height=3D12=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
            width=3D8> 70=BA&nbsp;</TD></TR>
        <TR>
          <TH>Alcance largo</TH>
          <TD><IMG height=3D16=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma3.gif"=20
            width=3D31> &gt; =
70=BA</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE><A=20
name=3Ddispersion></A>
<P>La <B>dispersi=F3n</B> es la distancia, determinada por el =
=E1ngulo&nbsp;<IMG=20
height=3D16 =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma2.gif"=20
width=3D19>, en que es capaz de iluminar la luminaria en direcci=F3n =
transversal a=20
la calzada. Se define como la recta tangente a la curva isocandela del =
90% de=20
I<SUB>MAX</SUB> proyectada sobre la calzada, que es paralela al eje de =
esta y se=20
encuentra m=E1s alejada de la luminaria.</P>
<TABLE width=3D"94%">
  <TBODY>
  <TR>
    <TD>
      <P class=3Dcentro><IMG height=3D199=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/viasp2.gif"=20
      width=3D231><BR>Dispersi=F3n transversal</P></TD>
    <TD>
      <TABLE class=3Ddatos2 width=3D"85%" border=3D1>
        <TBODY>
        <TR>
          <TH>Dispersi=F3n estrecha</TH>
          <TD><IMG height=3D16=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma2.gif"=20
            width=3D19> &lt; 45=BA</TD></TR>
        <TR>
          <TH>Dispersi=F3n media</TH>
          <TD>45=BA&nbsp;<IMG height=3D12=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
            width=3D8><IMG height=3D16=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma2.gif"=20
            width=3D19><IMG height=3D12=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
            width=3D8> 55=BA&nbsp;</TD></TR>
        <TR>
          <TH>Dispersi=F3n ancha</TH>
          <TD><IMG height=3D16=20
            =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/gamma2.gif"=20
            width=3D19> &gt; =
55=BA</TD></TR></TBODY></TABLE></TD></TR></TBODY></TABLE>
<P>Tanto el alcance como la dispersi=F3n pueden calcularse =
gr=E1ficamente a partir=20
del diagrama isocandela relativo en <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/graficos.html#isocl">p=
royecci=F3n=20
azimutal</A>.</P>
<TABLE width=3D"94%" align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D199=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/viasp3.gif"=20
      width=3D231><BR>Alcance y dispersi=F3n de una luminaria</TD>
    <TD><IMG height=3D226=20
      =
src=3D"http://edison.upc.edu/curs/llum/fotometria/graficos/plamb.gif"=20
      width=3D373> <BR>M=E9todo gr=E1fico para calcular el alcance y la=20
  dispersi=F3n</TD></TR></TBODY></TABLE>
<P>Por =FAltimo, el <B>control</B> nos da una idea de la capacidad de la =
luminaria=20
para limitar el deslumbramiento que produce.</P>
<TABLE class=3Ddatos2 width=3D"35%" align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH>Control limitado</TH>
    <TD>SLI &lt; 2</TD></TR>
  <TR>
    <TH>Control medio</TH>
    <TD>2&nbsp;<IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      SLI&nbsp;<IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      4&nbsp;</TD></TR>
  <TR>
    <TH>Control intenso</TH>
    <TD>SLI &gt; 4</TD></TR></TBODY></TABLE>
<P>Donde la <A class=3Dverde=20
href=3D"http://edison.upc.edu/curs/llum/exterior/sli.html">f=F3rmula del =
SLI</A>=20
(=EDndice espec=EDfico de la luminaria) se calcula a a partir de las =
caracter=EDsticas=20
de esta.</P><A name=3Ddisp></A>
<H3>Disposici=F3n de las luminarias en la v=EDa</H3>
<P>Para conseguir una buena iluminaci=F3n, no basta con realizar los =
c=E1lculos,=20
debe proporcionarse informaci=F3n extra que oriente y advierta al =
conductor con=20
suficiente antelaci=F3n de las caracter=EDsticas y trazado de la v=EDa. =
As=ED en curvas=20
es recomendable situar las farolas en la exterior de la misma, en =
autopistas de=20
varias calzadas ponerlas en la mediana o cambiar el color de las =
l=E1mparas en las=20
salidas.</P>
<P>En los <B>tramos rectos de v=EDas con una =FAnica calzada</B> existen =
tres=20
disposiciones b=E1sicas: unilateral, bilateral tresbolillo y bilateral =
pareada.=20
Tambi=E9n es posible suspender la luminaria de un cable transversal pero =
s=F3lo se=20
usa en calles muy estrechas.</P>
<TABLE cellSpacing=3D0 cellPadding=3D0 align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D145 alt=3DUnilateral=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza1.gif"=20
      width=3D130></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D5></TD>
    <TD><IMG height=3D145 alt=3DTresbolillo=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza2.gif"=20
      width=3D130></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D5></TD>
    <TD><IMG height=3D145 alt=3DPareada=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza3.gif"=20
      width=3D130></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D5></TD>
    <TD><IMG height=3D145 alt=3D"Suspendida transversalmente"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza4.gif"=20
      width=3D130></TD></TR></TBODY></TABLE>
<P>La distribuci=F3n unilateral se recomienda si la anchura de la v=EDa =
es menor que=20
la altura de montaje de las luminarias. La bilateral tresbolillo si =
est=E1=20
comprendida entre 1 y 1.5 veces la altura de montaje y la bilateral =
pareada si=20
es mayor de 1.5.&nbsp;</P>
<TABLE class=3Ddatos align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH>&nbsp;</TH>
    <TH>Relaci=F3n entre la anchura de la v=EDa y la altura de =
montaje</TH></TR>
  <TR>
    <TH>Unilateral</TH>
    <TD>A/H &lt; 1</TD></TR>
  <TR>
    <TH>Tresbolillo</TH>
    <TD>1&nbsp;<IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      A/H&nbsp;<IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif" =
width=3D8>=20
      1.5</TD></TR>
  <TR>
    <TH>Pareada</TH>
    <TD>A/H &gt; 1.5</TD></TR>
  <TR>
    <TH>Suspendida</TH>
    <TD>Calles muy estrechas</TD></TR></TBODY></TABLE>
<P>En el caso de <B>tramos rectos de v=EDas con dos o m=E1s calzadas</B> =
separadas=20
por una mediana se pueden colocar las luminarias sobre la mediana o =
considerar=20
las dos calzadas de forma independiente. Si la mediana es estrecha se =
pueden=20
colocar farolas de doble brazo que dan una buena orientaci=F3n visual y =
tienen=20
muchas ventajas constructivas y de instalaci=F3n por su simplicidad. Si =
la mediana=20
es muy ancha es preferible tratar las calzadas de forma separada. Pueden =

combinarse los brazos dobles con la disposici=F3n al tresbolillo o =
aplicar=20
iluminaci=F3n unilateral en cada una de ellas. En este =FAltimo caso es =
recomendable=20
poner las luminarias en el lado contrario a la mediana porque de esta =
forma=20
incitamos al usuario a circular por el carril de la derecha.</P>&nbsp;=20
<TABLE cellSpacing=3D0 cellPadding=3D0 align=3Dcenter border=3D0>
  <TBODY>
  <TR>
    <TD><IMG height=3D181 alt=3D"Central con doble brazo"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza5.gif"=20
      width=3D185></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D5></TD>
    <TD><IMG height=3D181 alt=3D"Combinaci=F3n de brazos dobles y =
tresbolillo"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza6.gif"=20
      width=3D185></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D5></TD>
    <TD><IMG height=3D181 alt=3D"Unilateral en calzadas diferenciadas"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza7.gif"=20
      width=3D185></TD></TR></TBODY></TABLE>
<P>En <B>tramos curvos</B> las reglas a seguir son proporcionar una =
buena=20
orientaci=F3n visual y hacer menor la separaci=F3n entre las luminarias =
cuanto menor=20
sea el radio de la curva. Si la curvatura es grande (R&gt;300 m) se =
considerar=E1=20
como un tramo recto. Si es peque=F1a y la anchura de la v=EDa es menor =
de 1.5 veces=20
la altura de las luminarias se adoptar=E1 una disposici=F3n unilateral =
por el lado=20
exterior de la curva. En el caso contrario se recurrir=E1 a una =
disposici=F3n=20
bilateral pareada, nunca tresbolillo pues no informa sobre el trazado de =
la=20
carretera.</P>&nbsp;=20
<TABLE cellSpacing=3D0 cellPadding=3D0 align=3Dcenter border=3D0 =
widht=3D"100%">
  <TBODY>
  <TR>
    <TD><IMG height=3D229 alt=3D"Unilateral exterior"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza8.gif"=20
      width=3D190></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D7></TD>
    <TD><IMG height=3D229=20
      alt=3D"Disposici=F3n correcta de las luminarias en una curva"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza8b.gif"=20
      width=3D156></TD>
    <TD><IMG height=3D1 =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pixel.gif"=20
      width=3D7></TD>
    <TD><IMG height=3D229 alt=3D"Bilateral pareada"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza9.gif"=20
      width=3D200></TD></TR></TBODY></TABLE><BR>
<TABLE class=3Ddatos2 cellPadding=3D5 width=3D"57%" align=3Dcenter =
border=3D1>
  <TBODY>
  <TR>
    <TH>R &gt; 300 m&nbsp;</TH>
    <TD colSpan=3D2>Asimilar a un tramo recto</TD></TR>
  <TR>
    <TH rowSpan=3D2>R &lt; 300 m</TH>
    <TH>A/H &lt; 1.5</TH>
    <TD>Unilateral exterior</TD></TR>
  <TR>
    <TH>A/H &gt; 1.5</TH>
    <TD>Bilateral pareada</TD></TR></TBODY></TABLE>
<P>En <B>cruces</B> conviene que el nivel de iluminaci=F3n sea superior =
al de las=20
v=EDas que confluyen en =E9l para mejorar la visibilidad. Asimismo, es =
recomendable=20
situar las farolas en el lado derecho de la calzada y despu=E9s del =
cruce. Si=20
tiene forma de T hay que poner una luminaria al final de la calle que =
termina.=20
En la salidas de autopistas conviene colocar luces de distinto color al =
de la=20
v=EDa principal para destacarlas. En cruces y bifurcaciones complicados =
es mejor=20
recurrir a iluminaci=F3n con proyectores situados en postes altos, m=E1s =
de 20 m,=20
pues desorienta menos al conductor y proporciona una iluminaci=F3n =
agradable y=20
uniforme.</P>
<TABLE align=3Dcenter border=3D0>
  <TBODY>
  <TR>
    <TD><IMG height=3D107 alt=3D"Cruce de 4 calles"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza10.gif"=20
      width=3D94></TD>
    <TD><IMG height=3D107 alt=3D"Cruce en T"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza11.gif"=20
      width=3D94></TD>
    <TD><IMG height=3D107 alt=3D"Cruce de 2 v=EDas"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza12.gif"=20
      width=3D213></TD></TR></TBODY></TABLE>
<P>En las <B>plazas y glorietas</B> se instalar=E1n luminarias en el =
borde=20
exterior de estas para que iluminen los accesos y salidas. La altura de =
los=20
postes y el nivel de iluminaci=F3n ser=E1 por lo menos igual al de la =
calle m=E1s=20
importante que desemboque en ella. Adem=E1s, se pondr=E1n luces en las =
v=EDas de=20
acceso para que los veh=EDculos vean a los peatones que crucen cuando =
abandonen la=20
plaza. Si son peque=F1as y el terrapl=E9n central no es muy grande ni =
tiene arbolado=20
se puede iluminar con un poste alto multibrazo. En otros casos es mejor =
situar=20
las luminarias en el borde del terrapl=E9n en las prolongaciones de las =
calles que=20
desemboca en esta.</P>
<TABLE align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D139 alt=3D"Glorieta simple"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza13.gif"=20
      width=3D139></TD>
    <TD><IMG height=3D139 alt=3D"Glorieta compleja"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza14.gif"=20
      width=3D139></TD></TR></TBODY></TABLE>
<P>En los <B>pasos de peatones</B> las luminarias se colocar=E1n antes =
de estos=20
seg=FAn el sentido de la marcha de tal manera que sea bien visible tanto =
por los=20
peatones como por los conductores.</P>
<TABLE align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D170=20
      alt=3D"V=EDa con una calzada y un =FAnico sentido de =
circulaci=F3n"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza15.gif"=20
      width=3D145></TD>
    <TD><IMG height=3D170=20
      alt=3D"V=EDa con una calzada y doble sentido de circulaci=F3n"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza16.gif"=20
      width=3D145></TD></TR></TBODY></TABLE>
<P>Por =FAltimo, hay que considerar la <B>presencia de =E1rboles en la =
v=EDa</B>. Si=20
estos son altos, de unos 8 a 10 metros, las luminarias se situar=E1n a =
su misma=20
altura. Pero si son peque=F1os las farolas usadas ser=E1n m=E1s altas =
que estos, de 12=20
a 15 m de altura. En ambos casos es recomendable una poda peri=F3dica de =
los=20
=E1rboles.</P>
<TABLE align=3Dcenter>
  <TBODY>
  <TR>
    <TD><IMG height=3D111 alt=3D"Iluminaci=F3n en presencia de =E1rboles =
altos"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza17.gif"=20
      width=3D145></TD>
    <TD><IMG height=3D111 alt=3D"Iluminaci=F3n en presencia de =E1rboles =
peque=F1os"=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/calza18.gif"=20
      width=3D145></TD></TR></TBODY></TABLE><A name=3Dnivel></A>
<H3>Niveles de iluminaci=F3n recomendados</H3>
<P>Los niveles de iluminaci=F3n recomendados dependen de las normativas =
en vigor=20
en cada territorio, aunque muchas de ellas toman como referencia los =
valores=20
aconsejados por la CIE. Seg=FAn esta, las v=EDas se dividen en cinco =
tipos de=20
acuerdo con las caracter=EDsticas del tr=E1fico, de la v=EDa y de los =
alrededores.</P>
<TABLE class=3Ddatos5 width=3D"94%" align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH rowSpan=3D2><A class=3Dverde =
href=3D"javascript:ventana(name2,0);">Tipo de=20
      v=EDa</A></TH>
    <TH rowSpan=3D2>Entorno</TH>
    <TH rowSpan=3D2>Categor=EDa</TH>
    <TH rowSpan=3D2>Luminancia media Lm (cd/m<SUP>2</SUP>)</TH>
    <TH colSpan=3D2><A class=3Drojo=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#coefs">Coefi=
cientes=20
      de uniformidad</A></TH>
    <TH colSpan=3D2>Control del&nbsp; <A class=3Drojo=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#deslum">desl=
umbramiento</A></TH></TR>
  <TR>
    <TH>Global&nbsp; U<SUB>0</SUB></TH>
    <TH>Longitudinal&nbsp; UL</TH>
    <TH><A class=3Dverde=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/dmoles.html">Molesto</A>=
=20
    G</TH>
    <TH><A class=3Dverde=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/dpertu.html">Perturbador=
</A>=20
      TI</TH></TR>
  <TR>
    <TD>A</TD>
    <TD>&nbsp;</TD>
    <TD>A</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>2</TD>
    <TD rowSpan=3D8><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.4</TD>
    <TD rowSpan=3D3><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.7</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>6</TD>
    <TD rowSpan=3D3><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
      width=3D8>10 %</TD></TR>
  <TR>
    <TD rowSpan=3D2>B</TD>
    <TD>Claro</TD>
    <TD>B1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>2</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>5</TD></TR>
  <TR>
    <TD>Oscuro</TD>
    <TD>B2</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>6</TD></TR>
  <TR>
    <TD rowSpan=3D2>C</TD>
    <TD>Claro</TD>
    <TD>C1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>2</TD>
    <TD rowSpan=3D5><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.5</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>5</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
      width=3D8>20 %&nbsp;</TD></TR>
  <TR>
    <TD>Oscuro</TD>
    <TD>C2</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>6</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
      width=3D8>10 %</TD></TR>
  <TR>
    <TD>D</TD>
    <TD>Claro</TD>
    <TD>D</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>2</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>4</TD>
    <TD rowSpan=3D3><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
      width=3D8>20 %</TD></TR>
  <TR>
    <TD rowSpan=3D2>E</TD>
    <TD>Claro</TD>
    <TD>E1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>4</TD></TR>
  <TR>
    <TD>Oscuro</TD>
    <TD>E2</TD>
    <TD>&nbsp;&nbsp;<IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.5</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
    width=3D8>5</TD></TR></TBODY></TABLE>
<P class=3Dcentro>Valores recomendados por la CIE (1977)</P>
<P>Los valores indicados en la tabla son <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/magnitud.html#lumin">l=
uminancias</A>,=20
no <A class=3Dazul=20
href=3D"http://edison.upc.edu/curs/llum/fotometria/magnitud.html#Ilumin">=
iluminancias</A>,=20
pues recordemos que son estas las responsables de provocar la =
sensaci=F3n de=20
visi=F3n.</P>
<P>A partir de 1995 la CIE ha establecido unas nuevas recomendaciones =
m=E1s=20
acordes con las =FAltimas investigaciones sobre el tema.</P>
<TABLE class=3Ddatos width=3D"75%" align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH rowSpan=3D2><A class=3Dverde=20
      href=3D"javascript:ventana(name2,1);">Categor=EDa</A></TH>
    <TH rowSpan=3D2>Luminancia media Lm (cd/m<SUP>2</SUP> )</TH>
    <TH colSpan=3D2><A class=3Drojo=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#coefs">Coefi=
cientes=20
      de uniformidad</A></TH>
    <TH rowSpan=3D2>Control del&nbsp;<A class=3Drojo=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#deslum">desl=
umbramiento</A>=20
      TI</TH>
    <TH rowSpan=3D2><A class=3Drojo=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/vias_p.html#SR">Alrededo=
res</A><BR>SR</TH></TR>
  <TR>
    <TH>Global&nbsp; U<SUB>0</SUB></TH>
    <TH><A class=3Dverde=20
      =
href=3D"http://edison.upc.edu/curs/llum/exterior/dpertu.html">Perturbador=
</A>=20
      TI</TH></TR>
  <TR>
    <TD>M1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>2.00</TD>
    <TD rowSpan=3D5><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.4</TD>
    <TD rowSpan=3D2><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.7</TD>
    <TD rowSpan=3D3><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
      width=3D8>10</TD>
    <TD rowSpan=3D3><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.5</TD></TR>
  <TR>
    <TD>M2</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>1.50</TD></TR>
  <TR>
    <TD>M3</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>1.00</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.5</TD></TR>
  <TR>
    <TD>M4</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.75</TD>
    <TD rowSpan=3D2>---</TD>
    <TD rowSpan=3D2><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/menor.gif"=20
      width=3D8>15</TD>
    <TD rowSpan=3D2>---</TD></TR>
  <TR>
    <TD>M5</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif"=20
      width=3D8>0.50</TD></TR></TBODY></TABLE><BR><BR>
<P class=3Dcentro>Valores recomendados por la CIE (1995)</P>
<P>Adem=E1s de estas recomendaciones que se aplican en los tramos =
normales de las=20
v=EDas hay que considerar que en las zonas conflictivas (cruces, =
intersecciones,=20
estrechamiento de la v=EDa o del n=FAmero de carriles, zonas con =
circulaci=F3n de=20
peatones o veh=EDculos lentos que dificulten la circulaci=F3n, rotondas, =
pasos a=20
nivel, rampas, etc.) suele ser necesario un incremento de los =
requerimientos=20
luminosos.</P>
<P>Si trabajamos con luminancias hay que aumentar en una unidad la =
categor=EDa de=20
la v=EDa de valor de Mx m=E1s alta que converja en la zona. Cuando sea =
del tipo M1 a=20
dicha zona tambi=E9n se aplicar=E1 este criterio.</P>
<P>En distancias cortas, menos de 60 m, no se pueden aplicar los =
m=E9todos de=20
c=E1lculos de las luminancias y se utiliza el criterio de las =
iluminancias.</P>
<TABLE class=3Ddatos width=3D"60%" align=3Dcenter border=3D1>
  <TBODY>
  <TR>
    <TH><A class=3Dverde =
href=3D"javascript:ventana(name2,1);">Categor=EDa</A></TH>
    <TH>Nivel medio&nbsp;<BR>iluminancia E<SUB>m</SUB> (lux)</TH>
    <TH>Coef global&nbsp;<BR>uniformidad U<SUB>0</SUB></TH></TR>
  <TR>
    <TD>C0</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      50</TD>
    <TD rowSpan=3D6><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      0.4</TD></TR>
  <TR>
    <TD>C1</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      30</TD></TR>
  <TR>
    <TD>C2</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      20</TD></TR>
  <TR>
    <TD>C3</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      15</TD></TR>
  <TR>
    <TD>C4</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      10</TD></TR>
  <TR>
    <TD>C5</TD>
    <TD><IMG height=3D12=20
      =
src=3D"http://edison.upc.edu/curs/llum/exterior/graficos/mayor.gif" =
width=3D8>=20
      7.5</TD></TR></TBODY></TABLE>
<P>El n=FAmero de la categor=EDa de la zona de conflicto (Cx) no ser=E1 =
menor que el=20
de la la v=EDa de mayor categor=EDa (Mx) que confluya en la zona.</P>
<TABLE align=3Dcenter>
  <TBODY>
  <TR>
    <TD><A href=3D"http://edison.upc.edu/curs/llum/indice.html"><IMG =
height=3D18=20
      alt=3DIndice =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pass2.gif"=20
      width=3D15 border=3D0></A></TD>
    <TD><A =
href=3D"http://edison.upc.edu/curs/llum/exterior/al_exte.html"><IMG=20
      height=3D18 alt=3D"Alumbrado de exteriores"=20
      src=3D"http://edison.upc.edu/curs/llum/graf_pag/pass1.gif" =
width=3D52=20
      border=3D0></A></TD>
    <TD><A href=3D"http://edison.upc.edu/curs/llum/indice.html"><IMG =
height=3D18=20
      alt=3DIndice =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pass2.gif"=20
      width=3D15 border=3D0></A></TD>
    <TD><A =
href=3D"http://edison.upc.edu/curs/llum/exterior/calculos.html"><IMG=20
      height=3D18 alt=3D"C=E1lculo de instalaciones de alumbrado de =
v=EDas p=FAblicas"=20
      src=3D"http://edison.upc.edu/curs/llum/graf_pag/pass3.gif" =
width=3D87=20
      border=3D0></A></TD>
    <TD><A href=3D"http://edison.upc.edu/curs/llum/indice.html"><IMG =
height=3D18=20
      alt=3DIndice =
src=3D"http://edison.upc.edu/curs/llum/graf_pag/pass2.gif"=20
      width=3D15 border=3D0></A></TD></TR></TBODY></TABLE>
<P class=3Dcentro>=A9 <A class=3Dcorreu2=20
href=3D"mailto:edison.ee@upc.edu?subject=3DManual de =
iluminaci=F3n">Javier Garcia=20
Fernandez, Oriol Boix</A></P></BODY></HTML>

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	COLOR: #009; FONT-FAMILY: arial,Helvetica,sans-serif; TEXT-ALIGN: left
}
INPUT {
	BORDER-LEFT-COLOR: #cfb080; BORDER-BOTTOM-COLOR: #fff2dd; COLOR: #000; =
BORDER-TOP-COLOR: #cfb080; FONT-FAMILY: verdana, arial,sans-serif; =
BACKGROUND-COLOR: #ffe8c5; BORDER-RIGHT-COLOR: #fff2dd
}
SELECT {
	BORDER-LEFT-COLOR: #cfb080; BORDER-BOTTOM-COLOR: #fff2dd; COLOR: #000; =
BORDER-TOP-COLOR: #cfb080; FONT-FAMILY: verdana, arial,sans-serif; =
BACKGROUND-COLOR: #efeedf; BORDER-RIGHT-COLOR: #fff2dd
}
INPUT.boto {
	BORDER-LEFT-COLOR: #fff2dd; BORDER-BOTTOM-COLOR: #cfb080; COLOR: #000; =
BORDER-TOP-COLOR: #fff2dd; FONT-FAMILY: verdana, arial,sans-serif; =
BACKGROUND-COLOR: #cfb08f; BORDER-RIGHT-COLOR: #cfb080
}
TEXTAREA {
	BORDER-LEFT-COLOR: #cfb080; BORDER-BOTTOM-COLOR: #fff2dd; COLOR: #000; =
BORDER-TOP-COLOR: #cfb080; FONT-FAMILY: verdana, arial,sans-serif; =
BACKGROUND-COLOR: #efeedf; TEXT-ALIGN: justify; BORDER-RIGHT-COLOR: =
#fff2dd
}
.blau {
=09
}
.centro {
	TEXT-ALIGN: center
}
.izqda {
	TEXT-ALIGN: left
}
.negreta {
	FONT-WEIGHT: bold
}

------=_NextPart_000_0000_01CA3471.6AC0F5E0
Content-Type: application/octet-stream
Content-Transfer-Encoding: quoted-printable
Content-Location: http://edison.upc.edu/curs/llum/scripts/funcion.js

// Versi=F3 navegador
var isNav4, isNav5, isIE4up, isOther, isDOM1, isLayerDOM, isAllDOM;
isNav4=3D(navigator.appName.indexOf("Netscape")!=3D-1)&&(parseInt(navigat=
or.appVersion)=3D=3D4);
isNav5=3D(navigator.appName.indexOf("Netscape")!=3D-1)&&(parseInt(navigat=
or.appVersion)>=3D5);
isIE4up=3D(navigator.appName.indexOf("Explorer")!=3D-1)&&(parseInt(naviga=
tor.appVersion)=3D=3D4);
isOther=3D(!isNav4)&&(!isNav5)&&(!isIE4up);

// Model d'objectes

if (document.all) {=20
  /* Code which uses only document.all */
	//Suporta DOM1
  isAllDOM=3Dtrue;
	isDOM1=3Dfalse;
	isLayerDOM=3Dfalse;
}else if (document.layers) {=20
  /* Code which uses only document.layers */
  isAllDOM=3Dfalse;
	isDOM1=3Dfalse;
	isLayerDOM=3Dtrue;
}else if (document.getElementById) {=20
  /* Code which uses only document.getElementById */
  isAllDOM=3Dfalse;
	isDOM1=3Dtrue;
	isLayerDOM=3Dfalse;
}=20

var a;/* a es el contador carac y name */
var name=3Dnew Array();/* lista con direcci=F3n ficheros */=20
var carac=3Dnew Array();/* lista con caracter=EDsticas ventanas */
var x=3Dnew Array();var y=3Dnew Array();
var name2;/* nombre ventana */
name2=3D"ventanal";
var obert2=3Dfalse;/* variable per saber si s'ha obert la finestra algun =
cop */

function Nada() {}=09

function tancar(nom,obert){
	if(obert=3D=3Dfalse){} /* la finestra nom no s'obert mai */
	else if(eval(nom+'.closed')){}
	else if(!eval(nom+'.closed')){eval(nom+'.close()');}
	else {}=09
}

function ventana(name2,a){
	ventana2('mventana',name2,a);
}

function ventana3(aurl,name1,name2,a){
	name[a]=3Daurl;
	if(obert2=3D=3Dfalse){
		eval(name1+'=3Dwindow.open("'+name[a]+'",name2,"'+carac[a]+'")');
		obert2=3Dtrue;}/* no s'obert mai mventana */
	else if(eval(name1+'.closed')){
		eval(name1+'=3Dwindow.open("'+name[a]+'",name2,"'+carac[a]+'")');}
		/* ha estat oberta alguna vegada pero ara es tancada */
	else if(!eval(name1+'.closed')){
		eval(name1+'.location=3D"'+name[a]+'"');
		eval(name1+'.focus()');}/* ara mateix esta oberta */
}

function ventana2(name1,name2,a) {
	var xx,yy;
	if(isNav4){xx=3Dx[a]-10;yy=3Dy[a]-25;}
	else {xx=3Dx[a];yy=3Dy[a];}
	=
if(obert2=3D=3Dfalse){eval(name1+'=3Dwindow.open("'+name[a]+'",name2,"'+c=
arac[a]+'")');
		obert2=3Dtrue;}/* no s'obert mai mventana */
	else =
if(eval(name1+'.closed')){eval(name1+'=3Dwindow.open("'+name[a]+'",name2,=
"'+carac[a]+'")');}/* ha estat oberta alguna vegada pero ara es tancada =
*/
	else =
if(!eval(name1+'.closed')){eval(name1+'.location=3D"'+name[a]+'"');
		eval(name1+'.resizeTo(xx,yy)');eval(name1+'.focus()');}/* ara mateix =
esta oberta */
}

function activar(nombreImagen) {
  	document[eval(nombreImagen)].src=3Dactivado[nombreImagen].src;
}

function desactivar(nombreImagen) {
  	document[eval(nombreImagen)].src=3Ddesactivado[nombreImagen].src;
}


------=_NextPart_000_0000_01CA3471.6AC0F5E0--

