摘要: |
High Occupancy Vehicle (HOV) lanes opened in the Salt Lake Valley May 14, 2001, on the reconstructed Interstate 15 (1-15). They were initially built on a 16-mile segment between 600 North and 10600 South. An 8.5-mile extension was opened between 10600 South and the Utah County line on Oct. 27, 2004. The Salt Lake Valley HOV lanes are single lanes and have a painted separation. They operate 24 hours a day, seven days a week. They operate in both the northbound and southbound directions. Two-or-more-person carpools, vanpools, buses, motorcycles, Alternative Fuel Vehicles (AFVs) and emergency vehicles are eligible to use the HOV lanes. There are inside ramps to the HOV lanes at 400 South, which is the central business district in Salt Lake City. This study reports on the performance of the extended HOV lanes. Vehicle volume, average vehicle occupancy (AVO), modal split, person throughput, and violation rate were collected manually. Travel time and speed data were collected using the floating car method and global positioning system (GPS) software. The data collected was compared with the NCHRP standards and national averages. |