3.0. SR 12-13-1993 - Laserfiche WebLink

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1 ! i ~ I 1 '1 j I . j 1 ~ J .; 152-0901.dec Jackson Avenue at TH 169 This is a signalized intersection currently operating at LOS B. This level of service cannot reasonably be maintained with the development in place. If the eastbound approach is reconfigured to two left turn lanes and one thru/right lane, it will operate at LOS C in the weekday p.m. peak hour and LOS D in the Friday p. m. peak hour after development. Ex.hibit 5 shows the reconfiguration of Jackson Avenue at the intersection of TH 169. This exhibit also shows an alternative for the realignment of the 193rd A venue intersection with Jackson. This intersection was a concern because the extension of a raised concrete median along Jackson Avenue to facilitate left turn pockets would eliminate left turn movements onto Jackson from the current location of the 193rd Avenue intersection. Realigning 193rd approximately 200 feet to the south allows the continuance of left turn movements. It also realigns the intersection of 193rd to the mid-point of the Jackson A ven ue curve to provide better si te distances. You will note that the exhibit also shows a realignment of Jackson Avenue in an effort to flatten the curve at the north end of the project. This will require some minor right-of- way from the Elk Park Center project. Making this curve less sharp will provide better geometries for the vehicles traveling along Jackson Avenue. 4. Re-analyze the movement of traffic from northbound TH 169 to westbound School Street between TH 169 and Freeport. The primary traffic movement is a northbound left turn at the School Street/TH 169 intersection followed by a westbound right turn at the School Street/Freeport A venue intersection. The volume of vehicles projected to turn left off northbound TH 169 warrants two turn lanes. Because of the relatively short distance between intersections (approximately 450 feet) and the heavy volume, merging movements and queuing are both concerns. A free right turn from westbound School Street to northbound Freeport Avenue permits a continuous flow of right turning traffic and reduces the stacking concern. It is also imperative that the two traffic signals be coordinated and timed properly. 5. Analyze the street section necessary on School Street between TH 169 and Freeport, considering the section needed from Freeport to Jackson and ultimately to Proctor A venue. Once this is established, analyze the available right-or-way and determine land acquisition needs. School Street between Freeport Avenue and TH 169 will carry considerably more traffic than west of Freeport Avenue. It will also be much more critical for School Street to provide sufficient stacking distance between Freeport Avenue and TH 169. Therefore, the street section east of Freeport will need to be considerably wider. As shown on Exhibit 6, School Street at the intersection of TH 169 will be six lanes wide. Two lanes will be westbound to accommodate the two left turn movements from northbound -4- 230-152-10