| Title | Safety Effects of Using Narrow Lanes and Shoulder-Use Lanes to Increase the Capacity of Urban Freeways |
|---|---|
| Record ID | 66295 |
| Personal Name Contributor |
Tan, Carol |
| Corporate Creator | United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology |
| Corporate Contributor |
Turner-Fairbank Highway Research Center |
| Publisher | United States. Federal Highway Administration. Office of Research, Development, and Technology |
| Publication Date | 20050101 |
| Language | English |
| Abstract | As traffic volumes grow on urban freeways, highway agencies face an ongoing challenge to maintain efficient traffic operations and acceptable levels of service. Increasing the capacity of a freeway by adding a lane can be difficult and expensive if it involves widening the existing roadbed, regrading roadside areas, and/or acquiring additional right-of-way. A number of highway agencies, however, have implemented projects in which a travel lane is added on an urban freeway by restriping the traveled way with narrower lanes, converting all or part of the shoulder to a travel lane, or a combination of both. The traffic operational benefits of such conversions are immediate and obvious, but the safety effects are uncertain. This study addresses these safety effects. |
| Rosap ID | dot:40568 |
| Rosap URL | https://rosap.ntl.bts.gov/view/dot/40568 |
| TRT Terms | Traffic volume; Highway capacity; Freeways |
| Geographical Coverage |
United States |
| Report Number | FHWA-HRT-05-001 |
| Resource type | Tech Report |
| URL | https://ntlrepository.blob.core.windows.net/lib/66000/66200/66295/FHWA-HRT-05-001.pdf |
| Alternative URL | https://www.fhwa.dot.gov/publications/research/safety/05001/05001.pdf; https://www.fhwa.dot.gov/publications/research/safety/05001/ |
| Format | |
| Database | NTL Digital Repository |