CCP 01-21-2003 - Laserfiche WebLink

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I I. I I I I I I I I- I I I I I I I. I I . 1-694 is a four-lane principal arterial interstate highway providing access to the Guidant Campus via the Lexington Avenue interchange. The existing ADT on I-694 is 99,000 (between the Hamline Avenue and Lexington Avenue interchanges). There are two roadways within the AUAR study boundary that provide for internal site circulation - Fernwood Drive and Guidant Drive North. These roadways also provide access to businesses and a park (Cummings Park) north of the study area, just north of Guidant Drive North. Fernwood Drive is currently a two-lane public roadway that runs north-south and bisects the existing campus. Guidant Drive North is currently a private roadway that runs east-west along the study area's northern boundary. Existing Traffic Operations The capacity of nearly every roadway segment is determined at the nodes of each end of the segment. Capacity is hardly ever restricted along the segment itself. In the case of a freeway, the nodes are the interchanges. For an arterial roadway, the nodes are the intersections. It is at these interchanges and intersections where the operational issues and capacity deficiencies of a roadway will be observed. A traffic operations analysis was conducted for the A.M. and P.M. peak hours at key intersections to determine how traffic currently operates in the vicinity of the AUAR study area. Rcfcr to Table 7 for key signalized intersections analyzed and Table 8 for key unsignalized intersections analyzed. Figure 12 shows existing geometries and A.M. and P.M. peak hour traffic volumes at these intersections. Results of the operations analysis indicate that with the eXlstmg traffic controls and intersections geometries, there are several intersections within the project area that currently operate at LOS D or worse during the A.M. and P.M. peak hours (see Tables 7 and 8). Table 7 shows that the signalized intersections of Lexington Avenue/Eastbound 1-694 and Lexington Avenue/CR 96 operate at a LOS E in the P.M. peak hour. The other three signalized intersections operate a LOS D or better. Table 8 shows that five of the unsignalized intersections currently experience LOS E or F. TABLE 7 EXISTING A.M. AND P.M. PEAK HOUR CAPACITY ANALYSIS LOS RESULTS - SIGNALIZED INTERSECTIONS Signalized Intersection Existing (2002) A.M. Peak P.M. Peak Lexington A venue & CR F C B Lexington A venue & WB 1-694 Ramps C C Lexington A venue & EB l-694 C E Lexington A venue & CR 96 D E Hamline A venue & CR 96 C , D I GuiJant Campus J\1aster Plan Final AUAR and Mitigation Plan - 31 - January 2003