Systemic Safety with Compact Roundabouts

Dina Swires

Statewide Traffic Safety Engineer
Washington State Department of Transportation

The Washington State Department of Transportation (WSDOT) is moving toward allocating more of their safety funds to a more proactive approach with systemic safety.

This presentation will highlight the following areas:

* The origin of the systemic safety with compact roundabouts program at WSDOT

* How a priority array was developed for rural, two lane, stop controlled roadway intersections

* The design documentation need to develop the project Contract Plans, Specifications & Estimates for Ad

* Examples of recent compact installations

* Strengths of the systemic safety with compact roundabouts program

Learning Objective 1: To illustrate a process to identify and include compact roundabouts in a systemic safety program.

Learning Objective 2: Understand how to minimize cost and maximize safety performance.

Learning Objective 3: Demonstrate successful compact roundabout examples in the field and their associated bid costs.

Target Audience: State Agencies, Local agencies and consultants.

Beyond setting good roundabout policies (such as Intersection Control Evaluations) and optimizing designs (by use of Peer Review and Design Manuals), Washington State Department of Transportation would like to demonstrate how an agency can implement a relatively low cost systemic safety roundabout program towards achieving Target Zero goals.