Chapter
Apr 26, 2012
Deceleration Length of Left-Turn Lane of Four-Lane Highway by Field Observation
Authors: Hongqi Liu [email protected], Cao Yi [email protected], Weihan Zhang, Fang Wang, and Taos Shen [email protected]Author Affiliations
Publication: ICTE 2011
Abstract
In order to make the deceleration length more practical without compromising safety, a new concept left-turn lane design method was produced and was used on a new four-lane highway in Yunnan Province. We observed vehicles speed on a selected left-turn lane set up with the new concept and obtained speed data of normal section and split point. Then we analyzed the data by means of descriptive statistics analysis, the paired-samples T test and ANOVA. The result showed that the length of left-turn lane could be shorter than the specification without compromising comfort and safety. The speed used to determine the deceleration length could be reduced by 15km/h.
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Information
Published In
ICTE 2011
Pages: 2665 - 2670
Copyright
© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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ASCE Technical Topics:
- Acceleration and deceleration lanes
- Building design
- Business management
- Conceptual design
- Data analysis
- Design (by type)
- Engineering fundamentals
- Highway and road design
- Highway and road management
- Highway and road structures
- Highway transportation
- Infrastructure
- Left turns
- Mathematics
- Methodology (by type)
- Practice and Profession
- Public administration
- Public health and safety
- Research methods (by type)
- Safety
- Statistics
- Traffic engineering
- Traffic management
- Transportation engineering
Authors
Affiliations
Road Safety Research Center and Research Institute of Highway, MOT, China, 100088.E-mail: [email protected]
Hubei Urban Construction Vocational and Technological College, 430205.E-mail: [email protected]
Weihan Zhang
Road Safety Research Center and Research Institute of Highway, MOT, China, 100088.
Fang Wang
Road Safety Research Center and Research Institute of Highway, MOT, China, 100088.
Yunnan Highway Development & Investment Co., Ltd, 650200.E-mail: [email protected]
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