Safety Evaluation of Right Turns Followed by U-turns as an Alternative to Direct Left Turns: Crash data analysis
Author: Jian John Lu
Publisher:
Published: 2001
Total Pages: 158
ISBN-13:
DOWNLOAD EBOOKRead and Download eBook Full
Author: Jian John Lu
Publisher:
Published: 2001
Total Pages: 158
ISBN-13:
DOWNLOAD EBOOKAuthor: J. Lu
Publisher:
Published: 2001
Total Pages: 77
ISBN-13:
DOWNLOAD EBOOKAuthor: Jian John Lu
Publisher:
Published: 2005
Total Pages: 260
ISBN-13:
DOWNLOAD EBOOKAuthor: John Lu
Publisher:
Published: 2001
Total Pages: 69
ISBN-13:
DOWNLOAD EBOOKAuthor:
Publisher:
Published: 2001
Total Pages: 230
ISBN-13:
DOWNLOAD EBOOKAuthor: J. Lu
Publisher:
Published: 2001
Total Pages: 97
ISBN-13:
DOWNLOAD EBOOKAuthor: Lu, Jian John Lu
Publisher:
Published: 2005
Total Pages: 172
ISBN-13:
DOWNLOAD EBOOKAuthor: Jian John Lu
Publisher:
Published: 2005
Total Pages: 244
ISBN-13:
DOWNLOAD EBOOKAuthor: Mashrur A. Chowdhury
Publisher:
Published: 2003
Total Pages: 90
ISBN-13:
DOWNLOAD EBOOKThe objective of this research was to evaluate the operational and safety effects of restricting direct left turns from a driveway and providing alternatives to accommodate the left turn deterred traffic. This study was conducted in three phases: survey of state agencies, operational analysis, and safety assessment. Very little operational difference was found between no restrictions on direct left turns versus the restrictions with the U-turn alternative movements from site to site. While changes in the traffic volumes on the mainline had an impact in specific instances, no definite trends were apparent. As a result of all findings in this study, it is proposed that alternatives must be evaluated on a site-by-site basis. This study also found the jughandle design to be a superior alternative for accommodating left-turn deterred traffic for multi-lane divided and undivided sites compared to mid-block or intersection U-turns. The safety assessment revealed that a right turn followed by a U-turn movement is safer than the direct left turn.
Author:
Publisher:
Published: 2005
Total Pages: 230
ISBN-13:
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