Performance Analysis of the Dowling Multi-Lane Roundabouts, in Anchorage, Alaska

Details

• Creators:
  Lee, Ming
• Corporate Creators:
  Alaska University Transportation Center
• Subject/TRT Terms:
  Crash Rates Highway Capacity Multilane Highways Performance Measurement Roundabouts Traffic Flow Traffic Volume Research Hub
• Resource Type:
  Tech Report
• Geographical Coverage:
  Alaska
• Corporate Publisher:
  Alaska University Transportation Center
• Abstract:
  The first multi-lane roundabouts in Alaska were constructed in 2004 at the ramp terminals of the Dowling/New Seward Highway interchange in Anchorage. The Dowling roundabouts are currently operating at capacity for a short period of time during the evening peak hours. The Dowling Road roundabouts offer a unique opportunity for traffic engineers to study the operating capacity of multi-lane roundabouts in the US. In addition, the safety performance of these multi-lane roundabouts has not been examined either. This study was designed to measure the operating performance and safety performance of the multi-lane roundabouts. We studied the operation of the roundabouts in both summer and winter operating conditions.
• Format:
  PDF
• Collection(s):
  University Transportation Centers US Transportation Collection
• Main Document Checksum:
  urn:sha-512:5560d2a30ffde6af61af7bf7df531154435de0287cddf2ad72de0e7d47a50ea7c87fe24901d5eba8a55d7724ed1ab149616dc43b8898d44c9c497bdc915312de
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/24398/dot_24398_DS1.pdf
• File Type:
  [PDF - 1.40 MB ]