| contributor author | Ting Wang | |
| contributor author | John Harvey | |
| contributor author | Jeremy Lea | |
| contributor author | Changmo Kim | |
| date accessioned | 2017-05-08T22:05:54Z | |
| date available | 2017-05-08T22:05:54Z | |
| date copyright | September 2014 | |
| date issued | 2014 | |
| identifier other | 26131532.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/71269 | |
| description abstract | To investigate the impact of changes in pavement roughness on speed, this study developed a linear regression model to estimate free-flow speed on freeways in California. The explanatory variables include lane number, total number of lanes, day of the week, region (district), gasoline price, and pavement roughness as measured by the international roughness index (IRI). Data on the California freeway network from 2000 to 2011 were used to build the model. The results showed that pavement roughness has a very small effect on free-flow speed within the range of this study. For the IRI coverage in this study (90% of the records have an IRI of three | |
| publisher | American Society of Civil Engineers | |
| title | Impact of Pavement Roughness on Vehicle Free-Flow Speed | |
| type | Journal Paper | |
| journal volume | 140 | |
| journal issue | 9 | |
| journal title | Journal of Transportation Engineering, Part A: Systems | |
| identifier doi | 10.1061/(ASCE)TE.1943-5436.0000689 | |
| tree | Journal of Transportation Engineering, Part A: Systems:;2014:;Volume ( 140 ):;issue: 009 | |
| contenttype | Fulltext | |