1. Room B243, Traffic Operations and Safety Laboratory, University of Wisconsin–Madison, Engineering Hall, 1415 Engineering Drive, Madison, WI 53706.
2. Traffic Analysis and Design, Inc., N36 W7505 Buchanan Court, Cedarburg, WI 53012.
3. Room 1204, Traffic Operations and Safety Laboratory, University of Wisconsin–Madison, Engineering Hall, 1415 Engineering Drive, Madison, WI 53706.