原文传递
Nonparametric Modeling of Vehicle-Type-Specific Headway Distribution in Freeway Work Zones
| 题名： | Nonparametric Modeling of Vehicle-Type-Specific Headway Distribution in Freeway Work Zones |
| 其他题名： | Ai,Q.,Yao,Z.,Wei,H.,and Li,Z.(2010)."Identifying characteristics of freeway traffic headway by vehicle types using video trajectory data."ICCTP 2010:Integrated Transportation Systems:Green,Intelligent,Reliable,1984-1992. |
| 正文语种： | 英文 |
| 作者： | Shangjia Dong |
| 关键词： | Headway distribution;Freeway work zone;Nonparametric approach |
| 摘要： | This paper presents a vehicle-type-specific headway distribution analysis in a freeway work zone. The goal of this paper is to provide a vehicle-type-specific model with different time periods using empirical work-zone data from highway I-91 in Greenfield, MA. A nonparametric approach with a Gaussian kernel is used to describe the vehicle-type-specific headway distribution in a freeway work zone. No assumption is required on how the headways should be distributed for nonparametric methods. The vehicles are classified into Car, Van, and Truck based on a FHWA vehicle-type classification scheme. Statistical tests indicate nonparametric distribution with Gaussian kernel outperforms the lognormal distribution in statistical sense according to the χ2 values. Further, another work zone dataset from Jacksonville, FL is utilized to examine the mixed headway scenario without specifying vehicle types. The K − S and Chi-square test results suggest the necessity of considering the vehicle types separately. Following the results, a discussion regarding why nonparametric model is better and the future research directions are presented. |
| 出版年： | 2015 |
| 论文唯一标识： | P-72Y2015V141N11006 |
| 英文栏目名称： | Case Studies |
| doi： | 10.1061/(ASCE)TE.1943-5436.0000788 |
| 期刊名称： | Journal of Transportation Engineering |
| 拼音刊名(出版物代码)： | P-72 |
| 卷： | 141 |
| 期： | 11 |
| 页码： | 39-51 |
相关文献
- Random Coefficient Models for Work Zone Headway Distribution
- Headway Distribution Considering Vehicle Type Combinations
- Optimizing Speed Limits Upstream of Freeway Reconstruction and Expansion Work Zones Based on Driver Characteristics
- Time-Headway Distributions on an Expressway: Case of Bangkok
- Impact of Platooning Connected and Automated Heavy Vehicles on Interstate Freeway Work Zone Operations
- Optimizing Work-Zone Schedule with Floating Car Data Considering Traffic Diversion and Managed Lanes
检索历史
应用推荐
