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The National Academies

NCHRP 20-07/Task 296 [Final]

Alignment of the Draft AASHTO Transit Guide with the AASHTO Green Book
[ NCHRP 20-07 (Research for AASHTO Standing Committee on Highways) ]

  Project Data
Funds: $40,000
Research Agency: CH2M Hill
Principal Investigator: Richard Coakley
Effective Date: 5/3/2012
Completion Date: 11/3/2012

OBJECTIVES

The objectives of this research were to review the comments made during the balloting of the draft AASHTO Transit Guide and to revise the draft Guide appropriately to resolve those comments.

STATUS

The draft guide has been revised based on the balloting comments and delivered to AASHTO for their further handling. The Guide for Geometric Design of Transit Facilities on Highways and Streets is available at https://bookstore.transportation.org/item_details.aspx?ID=2215 and is described at http://www.aashtojournal.org/Pages/080814transitguide.aspx
 

BACKGROUND

The draft AASHTO Guide for Geometric Design of Transit Facilities on Highways and Streets is envisioned as a companion to the AASHTO Green Book, providing DOTs, transit professionals, and design consultants with guidance specific to the proper incorporation of transit vehicles and facilities within the street environment.  Transit vehicles in the guide include buses, streetcars, and light rail transit vehicles.  The draft Transit Guide was developed through TCRP Project D-09, Transit Vehicles and Facilities on Streets and Highways

 

During the AASHTO balloting process, reviewers noted significant inconsistencies between the draft Guide and the AASHTO Green Book.  Many states have not submitted ballots, perhaps owing to the length of the draft Guide.  Satisfactory resolution of the comments is needed before another round of balloting is undertaken.

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