Agenda - Council - 11/24/1998 - Laserfiche WebLink

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Approximately 16 access driveways will be completely eliminated by the TH 47 changes, while approximately 5 driveways will be limited to right- in/right-out movements near the 142nd Avenue NW. These changes throughout the corridor will effect the traffic at major intersections such as 142nd Avenue NW. Therefore, signalization is needed to handle current and projected traffic on TH 47 and 142nd Avenue NW. V. PUBLIC AND AGENCY INVOLVEMENT The City of Ramsey, Mn/DOT and FHWA will be required to coordinate funding. VI. DESIGN CRITERIA AND EXCEPTIONS No design exceptions to Mn/DOT or AASHTO standards are required. Vii, JUSTIFICATION A. Signal Warrants Traffic signal justification will be based on applying the applicable warrant(s) for signal installation as outlined in the Minnesota Manual on Uniform Traffic Control Devices (MMUTCD) and reconciling the roadway geometries, 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. TH 47 at 142nd Avenue NW The signal warrants analysis is based on the assumptions shown below: Warrant Analysis Assumptions Geometry: Mainline Minor Street 2 approach lanes 2 approach lanes Approach Speeds: Mainline 45 mph Minor Street 30 mph The TH 47 at 142nd Avenue NW signal warrant analysis is based on July 24, I996 16-hour approach volumes collected by SRF Consulting Group, Inc., roadway geometrics, and the posted speed limits of 45 mph on the mainline (TH 47) and 30 mph on the minor street (142nd Avenue NW). 5 I I I I I i I I I I I I I I I I I I