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:
  • Traffic flow
  • Highway capacity
  • Harbors
  • Simulation
  • Traffic flow--Computer simulation
  • Traffic congestion--Computer simulation
  • Highway capacity--Computer simulation
  • Harbors--Access--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.
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23261/dot_23261_DS1.pdf
• File Type:
  [PDF - 241.99 KB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:b94cbd40f604a53ccf90fe97987ae4e6ee28603774c78923a2e49cb91aa8d89316be6c3bca12080c39af32de07b01ba144edaaff6278c42eebe8a83fb52eb963