City of Madison

Traffic Engineering - Yang Tao, Interim City Traffic Engineer & Parking Utility Manager

E. Mifflin St. & N. Blair St. Diverter Test


March 19, 2018: Traffic Engineering's report on the test diverter: E. Mifflin St & N Blair St. Diverter, Test Traffic Diverter Analysis, March 19, 2018

Update of the test

December 21, 2017: The 90-day diverter test period will conclude and the diverter will be removed on Tuesday, January 2nd, 2018. Additional traffic data will be collected by City Traffic Engineering after the test diverter is removed. A permanent diverter will be discussed at public, city meetings under the following schedule:

  • Tuesday, April 17, Introduction at Common Council
  • Tuesday, April 24, Pedestrian, Bicycle & Motor Vehicle Commission
  • Wednesday, May 2, Board of Public Works
  • Tuesday, May 15, Final approval at Common Council

If the permanent diverter is approved by the Common Council, construction would take place during the North Blair Street reconstruction project in the summer of 2018.

Why do the diverter test?

The City of Madison is working with the Tenney-Lapham Neighborhood Association to improve neighborhood traffic safety including pedestrian and bicycle conditions along E. Mifflin Street. As part of this project the neighborhood has requested that the City consider a partial closure of E. Mifflin St. at N. Blair Street. To test this partial closure the City has installed temporary curb and signing.

View map of diverter test (PDF).

The purpose of the diverter is to reduce the amount of cut-through traffic using E. Mifflin St., while still allowing bikes through. E. Mifflin St. is a city-designated "bike boulevard", and a reduction in cut-through traffic will reduce the number of potential conflicts between bikes and motor vehicles.

Upon conclusion of the test the Common Council will decide if the partial closure will be made permanent.

To provide feedback, please send an email with your current address to Tom Mohr, City Traffic Engineering,