2017.04.17 CC Packet - Laserfiche WebLink

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Adelaide Landing Residential Development Traffic Impact Analysis 1/31/2017 2040 No -Build Condition ➢ TH 61 & 140th Street operates at LOS-F in the p.m. peak hour, and TH 61 & 130th Street operates at LOS-D in both the a.m. peak hour. Both intersections are impacted by the lack of available through capacity along the two-lane section of TH 61. o Reconstruction of TH 61 to a four -lane section with turn lanes in this area will improve traffic operation to LOS-C or better at all study area intersections along TH 61. o The eastbound left turn movement of 140t Street at TH 61 operates at LOS-E. By creating a dedicated eastbound left turn lane and installing lead -lag left turn signal timing at that intersection, traffic operation will improve. ➢ The increased delay and operational issues identified will impact driver safety. Therefore, the widening of TH 61 to four lanes with turn lanes is recommended from a safety standpoint. 2022 Build Condition ➢ No intersection operates below LOS-D except TH 61 & 130th Street, which operates at LOS-F in the p.m. peak hour. These can be mitigated by geometric and signal timing improvements (as MnDOT deems necessary). ➢ Increased delay is identified at the westbound left approaches to TH 61 at 137th Street and 134th Street. It is recommended that east legs of the intersections be restriped to create one inbound (eastbound) lane and two outbound (westbound) lanes (e.g., one left turn lane and one right turn lane). ➢ 130th Street east of TH 61 is assumed to be reconstructed to Urban Collector Standards, as identified by the City's CIP. This will include turn lanes at the development intersections. (Details of the design are being established by others.) Turn lane lengths and taper will need to meet City Standards. ➢ From a safety perspective, however, a reduction in speed limit to 40 mph is recommended for both directions along 130th Street from TH 61 to the east property line of the Adelaide Landing development. 2040 Build Condition ➢ TH 61 & 1401h Street operates at LOS-F in the p.m. peak hour, and TH 61 & 13011 Street operates at LOS-E in both the a.m. and p.m. peak hours. Both intersections are impacted by the lack of available through capacity along the two-lane section of TH 61. o Reconstruction of TH 61 to a four -lane section with turn lanes in this area will improve traffic operation to LOS-C or better at all study area intersections along TH 61. 43 Westwood