Memorandum

City of Lawrence

Public Works

TO:	Mike Wildgen
FROM:	Chuck Soules
Date:	June 22, 2005
RE:	Traffic Safety Commission Agenda -Item 2 Speed Hump on Riverview Road

At the June 6, 2005 Traffic Safety Commission meeting the Commission unanimously approved recommending the construction of a speed hump at approximately 3122 Riverview Road near the bottom of the hill.  City policy requires that the 85^th percentile speeds are 5 mph or more over the speed limit, or traffic volumes are greater than 1,000 vehicles per day, to “warrant” the installation of a speed hump.  On April 20, 2005 traffic volumes ranged from 330 to 570 vehicles/day, and the 85^th percentile speeds ranged from 25.7 – 45.5 mph.  The posted speed limit is 30 mph and, therefore, meets the threshold for installation of a speed hump.

The City has a list of traffic calming devices approved (attached) but does not have funding to construct these devices.  The estimated cost of this installation is $12,000.

Respectfully submitted,

Charles F. Soules, P.E.

Director of Public Works

CFS/je

Attachment