Abstract
The HOV carpooling lane offers a feasible approach to alleviate traffic congestion. The connected vehicle environment is able to provide accurate traffic data, which could optimize the design of HOV carpooling schemes. In this paper, significant tidal traffic flow phenomenon with severe traffic congestion was identified on North Beijing road (bidirectional four-lane) and South Huaihai road (bidirectional six-lane) in Huai’an, Jiangsu Province. The historical traffic data of the road segments were collected through the connected vehicle environment facilities. The purpose of this study is to investigate the effect of adopting two HOV schemes (regular HOV scheme and reversible HOV carpooling scheme) on the urban arterial road under connected vehicle environment. VISSIM was used to simulate the proposed two HOV carpooling schemes at the mentioned road segment. The simulation results showed that the reversible HOV carpooling scheme could not only mitigate the traffic congestion caused by traffic tidal phenomenon but also improve the average speed and traffic volume of the urban arterial road segment, while the regular HOV scheme may exert a negative impact on the average speed and traffic volume on the urban arterial road segment.
Highlights
While the average speed of the reversible Highoccupancy vehicle (HOV) carpooling scheme has increased by 2.7% compared to the original road, the tra c volume has increased by 11.1%. e results show that the reversible HOV carpooling scheme has obvious improvement in tra c condition for the four‐lane North Beijing road
The reversible HOV carpooling scheme has met an increase of 11.2% on average speed and 27.8% on tra c volume compared to the original road. e reversible HOV
VISSIM was used to test and evaluate the tra c performance on urban arterial roads before and a er introducing HOV carpooling schemes. e results showed that the average speed was decreased by 6.5% and the tra c volume was declined by 6.3% a er introducing regular HOV carpooling scheme on a road with bidirectional four lanes, while the reversible HOV carpooling scheme on the same road resulted in 2.7% and 11.1% increment in average speed and tra c volume, respectively
Summary
Regular HOV carpooling scheme is commonly set on the inner lane of the road, and the direction of tra c is in accordance with ordinary lanes. It is isolated from ordinary lanes through road markings or a bu er area. E inner lane of minor traffic is set as HOV carpooling lane and is isolated from ordinary lanes through the physical facilities. E HOV carpooling lane on Shenzhen Binhai Avenue is set in the inner lane of the road which is connected to lots of interchanges and entrances, resulting in a large number of traffic conflicts. As the traffic situation in China is complicated, most of the urban arterial roads do not have sufficient spare space to expand. us, the isolated HOV carpooling scheme is not suitable for urban arterial roads in old cities [12]. e adoption of different types of HOV carpooling schemes requires an in‐ depth analysis of historical traffic data, which could be obtained through the connected vehicle environment facilities
Sign-in/Register to view highlights & summary 
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call