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1 8.16 On page 16 of the Study, TKDA identifies mitigation measures. The Engineering 2 Division has the following comments and subsequent PUD conditions regarding these measures: 4 5 a. Mitigation 1 is the signalization of the Fairview/ Lydia Avenue intersection. The 6 additiona12018 analysis indicates that this intersection operates at an acceptable 7 LOS D during the a.m. and p.m. peak hours for cumulative traffic conditions. The 8 LOS D delay threshold for an unsignalized intersection is 25-35 seconds; the LOS 9 E delay threshold is 35-50 seconds. Based on this information the LOS D reported 10 has no additional capacity available to support additional traffic. To address this, 11 TKDA recommends that a traffic signal at Fairview Avenue and Lydia Avenue be 12 installed. In order for a signal to be installed it must meet specific criteria (signal 13 warrants). A cursory level review of the signal warrants (based solely on projected 14 peak hour traffic volumes) indicate that the peak hour warrant 3B will be met 15 under year 2018 cumulative conditions. Typically, the peak hour warrant alone 16 will not justify the installation of a signal, additional analysis will be necessary. A 17 signal is not included in the County or City's long range Capital Improvement 18 Plan. Therefore funding has not been identified and there is no timeline for this 19 improvement. Because the proposed college expansion uses up the additional 20 capacity at this intersection, staff recommends that this mitigation measure reflect 21 these limitations and be changed to an action item that would aid the 22 implementation of the identified improvements. Staff recommends that a 23 condition be added to the PUD requiring: 24 25 Northwestern to pay for a Fairview/ Lydia Avenue intersection improvement 26 when it is warranted. A warrant analysis shall be completed as a part of the traffic 27 study update required with each subsequent development phase. If subsequent 28 City Council approved development occurs adding to the volume of traffic being 29 projected for this intersection, before the signal is warranted. Conditions will be 30 added to that approval requiring a proportionate cost share from that proposed 31 development. 32 33 b. Mitigation 2 is to open the west gate at Lydia Avenue to outbound right turns and 34 inbound left turns during the p.m. peak hour. This improvement should be 35 included as a condition in the PUD and should be completed at the same time as 36 the first phase of development. Development plans should provide additioiial 37 information regarding the configuration of the westerly driveway at the 38 intersection with Lydia Avenue, traffic routing through campus, and signage 39 should be provided with the first development plan. 40 41 c. Mitigation 3 is the addition of an exclusive right turn lane at the College entrance. 42 This should be included as a condition in the PUD agreement. Due to existing 43 traffic, this improvement should be completed as a part of the first phase of 44 development. The intersection should be striped to include a southbound left turn 45 lane from Lydia to Lincoln Avenue. PF07-002_RCA_092407 Page 8 of 10