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The National Academies

NCHRP Synthesis 20-05/Topic 46-02 [Final (Synthesis)]

Roundabout Practices
[ NCHRP 20-05 (Synthesis of Information Related to Highway Practices) ]

  Project Data
Funds: $40,000
Authorization to Begin Work: 9/10/2014 -- estimated
Staff Responsibility: Jo Allen Gause
Research Agency: Kittelson & Associates, Inc.
Principal Investigator: Alek L. Pochowski
Completion Date: 4/4/2016
Fiscal Year: 2014

TRB's National Cooperative Highway Research Program (NCHRP) Synthesis 488: Roundabout Practices summarizes roundabout policies, guidance, and practices within state departments of transportation (DOTs) as of 2015. The synthesis may be used as a reference for state agencies that are creating or updating their roundabout and intersection control policies.

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