Page 27 - TT July Issue for Digital Edition
P. 27
ROAD SAFETY
iii) Signage and other features heavier traffic typically require c) Key Considerations for Street
should be conspicuous without higher illumination levels Lighting:
glare. compared to those with lower i) Illumination Levels: The
traffic density
b) IS 1944-7 (1981): This part standards specify minimum
focuses on lighting for roads ii) Road Geometry: Curves, illumination levels for different
with special requirements junctions, and flyovers often categories of National Highways.
(Group F), which could include necessitate additional lighting These levels are measured in lux
some National Highways for improved visibility (lumens per square meter).
with unique characteristics. iii) Surrounding Environment: The ii) Uniformity: Lighting should
These standards establish a presence of built-up areas, be consistent throughout the
framework for lighting design factories, or open spaces highway length to avoid sudden
based on factors like:
can influence lighting design changes in brightness that can
i) Traffic Volume: Highways with choices affect driver vision.
www.trafficinfratech.com / July 2024 / TRAFFICINFRATECH 27
