Microscopic model of road capacity for highway systems in port based metropolitan areas.

Details

• Creators:
  Wang, Fei
• Corporate Creators:
  METRANS Transportation Center (Calif.)
• Corporate Contributors:
  California State University, Long Beach
• Subject/TRT Terms:
  Harbors Harbors--Access--Computer Simulation Highway Capacity Highway Capacity--Computer Simulation Simulation Traffic Congestion--Computer Simulation Traffic Flow Traffic Flow--Computer Simulation
• Publication/ Report Number:
  METRANS 09-11
• Resource Type:
  Tech Report
• Geographical Coverage:
  California
• Edition:
  Final report.
• Corporate Publisher:
  METRANS Transportation Center (Calif.)
• Abstract:
  In this report, we present our approach to use microscopic modeling to assess
  
  highway traffic mobility during lane blockage situation. A test microscopic model using
  
  ARENA software is developed. In this model, we specifically aim to simulate the impact
  
  of container trucks on highway traffic capacity and risk of accident during lane blockage.
  
  The test model simulates a 3000 feet distance on a two lane highway, while the
  
  passing lane is blocked at 2500 feet distance from the beginning. Merging sign and taper
  
  zone was used to guide traffic on the passing lane to merge to driving lane. We adjust the
  
  cargo truck traffic ratio to assess the effect of cargo trucks on the road mobility. The road
  
  mobility is assessed using the throughput ratio (total number of vehicles exited the
  
  system/ total number of vehicles entered the system). The risk of collision is assessed
  
  using the number of un-successful merging attempts at the taper end.
  
  Traffic throughput and risk of collision is simulated as a function of traffic density,
  
  cargo truck percentage as well as number of merging signs placed onsite. We found that:
  
  1) Increasing traffic density significantly reduces the road throughput, while increases the
  
  risk of collision moderately too; 2) Increasing cargo truck percentage reduces road
  
  throughput, while increases the risk of collision; 3) Increasing number of merging signs
  
  increases the traffic throughput and reduces the risk of collision up to a threshold. Under
  
  the traffic condition we studied, this threshold is two merging signs.
  
  
• Format:
  PDF
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha-512:b94cbd40f604a53ccf90fe97987ae4e6ee28603774c78923a2e49cb91aa8d89316be6c3bca12080c39af32de07b01ba144edaaff6278c42eebe8a83fb52eb963
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23261/dot_23261_DS1.pdf
• File Type:
  [PDF - 241.99 KB ]