Lane volume and saturation flow rate for multilane intersection approach
- Texas A and M Univ., College Station, TX (United States). Dept. of Civil Engineering
One factor that an reduce a lane`s saturation flow to less than ideal conditions is when turning vehicles share the lane with through vehicles. The slow discharge rate of the turning vehicles reduces the lane`s effective saturation flow rate in direct proportion to the percentage of turn vehicles in it. A model is described that predicts this percentage and the resulting saturation flow rate of the shared lane. Based on the results of this research, it is believed that the proposed model accurately predicts the lane volume for any approach to a signalized intersection and the uncontrolled approach to an unsignalized intersection. The model extends previous models by incorporating a sensitivity to both left- and right-turn movements and the probability of a lane change into a closed-form solution. Some field data are used to validate the proposed model.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 289973
- Journal Information:
- Journal of Transportation Engineering, Journal Name: Journal of Transportation Engineering Journal Issue: 3 Vol. 124; ISSN JTPEDI; ISSN 0733-947X
- Country of Publication:
- United States
- Language:
- English
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