08-01-2014, 06:11 AM
Metering
All instruments and meters shall be completely segregated in instrument compartments.
Metro Station lighting
(a) Station lighting shall be energy efficient.
(b)Lighting levels shall be graduated consistent with safety and comfort avoiding abrupt change in illumination levels.
©The following general guidelines shall be followed:
(i)At Station entrances where Users enter from sunlit streets, a graduation of the lighting level shall be provided;
(ii)escalators and stairways shall be well illuminated;
(iii)at platform level, lighting shall be compatible with that of the Train. A reduced intensity shall be provided at platform ends (particularly the leading end) to reduce the glare to the driver while entering the Station. The need to highlight information panels and to illuminate the Train surface for the ease of Users when alighting the Train shall be taken into account;
(iv)trackway lighting shall be sufficient to define a path for the prompt safe and orderly movement of patrons, employees and Emergency Services required for evacuating the system under an emergency;
(v)all Station premises to which Users have access, including foot bridges, subways, stairways, steps, ramps, and escalators should be permanently lit when there is no day light;
(vi)lighting shall not blind Train operations;
(vii)platform lighting should high light the platform edge;
(viii)Station name boards should be conspicuously visible along platforms at intervals, unimpaired by waiting Users, and well lit during hours of darkness;
(ix)when CCTV is being used, particular care shall be taken as to the type and distribution of light fittings;
(x)luminaires in Station Control Rooms shall be positioned so that no reflected glare from dials or monitor screens interferes with the operator’s vision;
(xi)outdoor lighting shall be provided as required outside Stations;
(xii)lighting design shall take into consideration the use of daylight as far as possible for energy conservation purposes and suitable controls shall be provided accordingly;
(xiii)multi purpose wall lighting and feature lighting shall be provided to illuminate signage, advertisements and specific areas such as help points and/or Designated Waiting Areas (DWA);
(xiv)lighting in public areas shall be controlled by Station Management System;
(xv)luminaires shall have the degree of protection dictated by their location. Where luminaires are subject to excesses of dust and water, a high degree of protection, typically IP 65 shall be employed. Mechanical protection of luminaires against damage from impact wherever the risk occurs, shall be provided in the form of wire guards or other such devices;
(xvi)the light fittings shall not emit to xic gases in the case of fire;
(xvii)any required illumination shall be arranged such that any failure of any single lighting unit shall not leave the area in total darkness;
(xviii)in general the luminaires shall have a minimum down light output ratio of 70%; and
(xix)lighting levels shall be uniformly distributed throughout as far as possible and be designed to prevent glare, dark recesses and areas of poor lighting levels. Lighting levels should be graduated consistent with safety and comfort, avoiding abrupt changes in illumination levels.
All instruments and meters shall be completely segregated in instrument compartments.
Metro Station lighting
(a) Station lighting shall be energy efficient.
(b)Lighting levels shall be graduated consistent with safety and comfort avoiding abrupt change in illumination levels.
©The following general guidelines shall be followed:
(i)At Station entrances where Users enter from sunlit streets, a graduation of the lighting level shall be provided;
(ii)escalators and stairways shall be well illuminated;
(iii)at platform level, lighting shall be compatible with that of the Train. A reduced intensity shall be provided at platform ends (particularly the leading end) to reduce the glare to the driver while entering the Station. The need to highlight information panels and to illuminate the Train surface for the ease of Users when alighting the Train shall be taken into account;
(iv)trackway lighting shall be sufficient to define a path for the prompt safe and orderly movement of patrons, employees and Emergency Services required for evacuating the system under an emergency;
(v)all Station premises to which Users have access, including foot bridges, subways, stairways, steps, ramps, and escalators should be permanently lit when there is no day light;
(vi)lighting shall not blind Train operations;
(vii)platform lighting should high light the platform edge;
(viii)Station name boards should be conspicuously visible along platforms at intervals, unimpaired by waiting Users, and well lit during hours of darkness;
(ix)when CCTV is being used, particular care shall be taken as to the type and distribution of light fittings;
(x)luminaires in Station Control Rooms shall be positioned so that no reflected glare from dials or monitor screens interferes with the operator’s vision;
(xi)outdoor lighting shall be provided as required outside Stations;
(xii)lighting design shall take into consideration the use of daylight as far as possible for energy conservation purposes and suitable controls shall be provided accordingly;
(xiii)multi purpose wall lighting and feature lighting shall be provided to illuminate signage, advertisements and specific areas such as help points and/or Designated Waiting Areas (DWA);
(xiv)lighting in public areas shall be controlled by Station Management System;
(xv)luminaires shall have the degree of protection dictated by their location. Where luminaires are subject to excesses of dust and water, a high degree of protection, typically IP 65 shall be employed. Mechanical protection of luminaires against damage from impact wherever the risk occurs, shall be provided in the form of wire guards or other such devices;
(xvi)the light fittings shall not emit to xic gases in the case of fire;
(xvii)any required illumination shall be arranged such that any failure of any single lighting unit shall not leave the area in total darkness;
(xviii)in general the luminaires shall have a minimum down light output ratio of 70%; and
(xix)lighting levels shall be uniformly distributed throughout as far as possible and be designed to prevent glare, dark recesses and areas of poor lighting levels. Lighting levels should be graduated consistent with safety and comfort, avoiding abrupt changes in illumination levels.