15th percentile
50 ″″percentile
85th percentile
98 ″″percentile
Traffic volume should always be more than traffic capacity.
Traffic capacity should always be more than traffic volume.
Spot speed is the average speed of a vehicle at a specified section.
85th percentile speed is more than 98th percentile speed.
width of traffic lanes
extra width of pavement and minimum turning radius
width of shoulders and parking facilities
clearance to be provided under structures such as overbridges, under-bridges etc.
1.85m
2.44 m
3.81 m
4.72 m
traffic volume studies
speed studies
accident studies
origin and destination studies