Microsimulation of Freeway Work Zones to Assess Flow and Capacity

Details

• Creators:
  Horowitz, Alan J.
• Corporate Creators:
  University of Wisconsin--Milwaukee. Center for Urban Transportation Studies
• Corporate Contributors:
  Smart Work Zone Deployment Initiative
• Subject/TRT Terms:
  • Microscopic traffic flow
  • Traffic simulation
  • Work zones
  • Traffic flow
  • Highway capacity
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Wisconsin
• Edition:
  Final Report
• Corporate Publisher:
  Smart Work Zone Deployment Initiative
• Abstract:
  This research applied microscopic traffic simulation to freeway work zones to further understand the relationship between traffic variables and capacity. There are two distinct forms of capacity depending upon the flow regime: capacity while traffic is free flowing and capacity while traffic is queued. Actual work zones from the Milwaukee freeway systems were varied by simulation to obtain relationships between capacity and truck volume, lane distribution, ramp location, ramp volumes, grade and merging schemes. Capacity was found to be a random variable, even when all prevailing conditions are held constant, because of stochastic variations in vehicle mix, lane distribution and driver behavior. Capacity was found to be significantly affected by prevailing conditions of grade, vehicle mix, and the lane distribution of trucks.
• Format:
  PDF
• Funding:
  08588
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88120/dot_88120_DS1.pdf
• File Type:
  [PDF - 123.78 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:e56e9bd7a07a0c52a52d0fcb0060b6e075b4db0510debb14c35721206e29b6593e72baa05465222ac25ecab22fa51d9313728e546e539c57bc94fcb6b2a8de34