Development of a guideline for work zone diversion rate and capacity reduction.

Details

• Creators:
  Kwon, Eil ; Park, Chongmyung
• Corporate Creators:
  University of Minnesota, Duluth. Department of Civil Engineering
• Corporate Contributors:
  Minnesota. Dept. of Transportation. Research Services & Library
• Subject/TRT Terms:
  • Work zone traffic control
  • Highway capacity
  • Traffic diversion
  • work zones
  • traffic diversion
  • simulation
  • iterative methods
  • highway capacity
• Publication/ Report Number:
  MN/RC 2016-12
• Resource Type:
  Tech Report
• Geographical Coverage:
  Minnesota ; United States
• Corporate Publisher:
  Minnesota. Dept. of Transportation. Research Services & Library
• Abstract:
  This study develops a comprehensive guideline to estimate the traffic diversion rates and capacity reduction for ; work zones. The analysis of the traffic diversion patterns with data from past work zones in the metro freeway ; network in Minnesota resulted in a set of the diversion-estimation models that relate the diversion rates at freeway ; ramps with the travel times and speed levels on a freeway and alternative routes during construction. The ; interrelationship between diversion and work-zone traffic conditions has led to the development of an iterative ; process, where a freeway simulation model interacts with the diversion-estimation models until a convergence is ; achieved between diversion and resulting freeway delays. Freeval is adopted in this study as the simulation tool for ; freeways. The test results of the iterative process with the work zone data showed promising results in determining ; both the diversion rates and freeway delay for a given work-zone. Due to the types of the work zones used in ; developing the diversion models, the iterative process developed in this study can be applicable to only “two-toone” ; lane reduction cases in estimating the diversion rates for the mainline exit flows, while the diversion rates at ; entrance ramps can be determined without such restrictions. The capacity analysis of the lane-closure sections ; performed in this study has also resulted in a set of the suggested capacity values for the work zones with two-toone ; lane reduction.
  More +
• Format:
  PDF
• Funding:
  (c) 99008 (wo) 87 ; CTS #2014004
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/32174/dot_32174_DS1.pdf
• File Type:
  [PDF - 24.79 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:272d118ccda7657ce2af6b2dfd7f1838eec9667868764c6d58422775dd23f070