4.2. SR 06-30-1997 - Laserfiche WebLink

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PUBLIC AND AGENCY INVOLVEMENT t The City of Elk River and Mn/DOT will be required to coordinate funding. VI. DESIGN CRITERIA AND EXCEPTIONS No design exceptions to Mn/DOT or AASHTO standards are required. VII. JUSTIFICATION Traffic signal justification will be based on applying the applicable warrant(s) for signal installation as outlined in the Minnesota Man~81 on Uniform Traffic Control Devices (MMUTCD) and reconciling the roadway geometrics, proposed lane usage, existing traffic volumes and planned changes in the area roadway network with the requirements of the MMUTCD and sound traffic engineering practice. The signal warrants analysis is based on the assumptions shown below: Geometry: Warrant Analysis Assumptions Northbound Mainline Southbound Mainline Minor Street 2 approach lanes 2 approach lanes 2 approach lanes Approach Speeds: Mainline 55 mph Minor Street 30 mph Based on April 1996 traffic counts for 197th Avenue, and previous data collected by Mn/DOT for TH 169, the TH 169 and .197th AvenUe intersection does not meet minimum/warrant requirements for traffic signal control. In order to determine if the proposed Menard's development forecast volumes would meet signal warrant requirements, hourly approach forecast volumes were developed and a 16-hour warrants analysis completed. The proposed roadway. geometdcs .with the posted speed .limits on both roadways were assumed Based on this warrants analysis it is expected that the Subiect intersection WoUld meet Mn/MUTCD Warrants 2, 8,~ 9and .11 With prOpOsed Menard,s'develol3ment' traffic included (see'Appendix for ~a...'~ts*~naly~is'sfimma~es);:.:,,Tfie'~dditi~jfial the ~eed .fo~ ~affic s~gnal cont[01 at th~s ~nteme~on.