To capture the speed difference across lanes, a maximum speed is also defined for each lane based on the design speed and the number of lanes in the segment, i.e.:
where:
capture the fact
that, in segments with multiple lanes, the vehicles in the central and
left lanes tend to travel faster than the vehicles in the right lanes.
Suggested values of are based on [FHWA(1980)] (see Table C.6 in Appendix C).
