TY  - JOUR
PY  - 2018//
TI  - Impacts of traffic flow arrival pattern on the necessary queue storage space at metered on-ramps
JO  - Transportmetrica A: transport science
A1  - Yang, Guangchuan
A1  - Tian, Zong
A1  - Xu, Hao
A1  - Wang, Zhongren
A1  - Wang, Daobin
SP  - 543
EP  - 561
VL  - 14
IS  - 7
N2  - This paper compares queue lengths at the two different on-ramp configurations: arterial-to-freeway ramp and freeway-to-freeway connector. Mesoscopic queue length simulation models are developed based on the input-output method. The input-output method aims to model the traffic flow arrival profile; then, the mesoscopic simulation model generates random traffic volume to simulate the stochasticity of traffic flow. The simulation models are validated using field-collected data. Simulation results indicated that the traffic flow arrival pattern has significant impacts on ramp queue length; vehicle platoons released from the upstream signalized intersection tend to exacerbate ramp queue length. At metered ramps, the required queue storage length is found to be 5.7% of demand when demand is less than 500 vehicles per hour per lane (vphpl), or 3.9% when demand is greater than 500 vehicles per hour per lane (vphpl). In comparison, at metered connectors, the percent numbers are 4.7 and 2.1%, respectively.<p />  <p>Language: en</p>
LA  - en
SN  - 2324-9935
UR  - http://dx.doi.org/10.1080/23249935.2017.1387875
ID  - ref1
ER  -