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Mark Culver, PE January 17, 2019 City of Roseville Page 10 Additional concept scenarios were discussed but not carried forward. These include: • Construction of displaced left -turns or a Green "T" at Lydia Avenue. • Construction of a pedestrian overpass or underpass at Lydia Avenue. • Reconstruction of Snelling Avenue as an urban arterial as opposed to an expressway. The pedestrian overpass or underpass at Lydia Avenue would address pedestrian crossing concerns but not address other congestion issues in the corridor. The reconstruction of Snelling Avenue as an urban arterial received discussion but was also a scenario that would require significant community and business discussion about the future vision of the corridor and require significantly more funding than could be considered feasible at this time to address the current issues. Scenario 1 This scenario includes geometric changes at Lydia Avenue (see Figure 9) and at County Road C2 (see Figure 10). These changes are relatively low-cost improvements that will greatly reduce side - street delays. The City of Roseville is already moving forward with the improvements proposed at County Road C2 with expected completion during the 2019 construction season. At Lydia Avenue, the proposed improvements involve restriping the west side of Lydia Avenue from Snelling Avenue to Lincoln Drive by moving the westbound -to -southbound left -turn lane north approximately five feet along with narrowing the lane to a 10 -foot lane. This will provide two lanes of eastbound traffic eliminating the current bottleneck that does not allow the lanes at Snelling to fill and allows for the inclusion of a dual left turn lane for the heavy left -turn demand to northbound Snelling Avenue. The existing traffic signal would be modified to accommodate the dual left -turn lane lanes. To improve the pedestrian environment this scenario bans the westbound left -turns at the Snelling Avenue/Lydia Avenue intersection. These left -turns can be accommodated instead by using the Snelling Avenue East Service Drive. Traffic counts show that westbound left -turn demand is relatively low at the intersection and there is an alternate way to make this movement requiring minimal diversion (i.e., using the southbound Snelling Avenue East Service Drive to the County Road C2 intersection). A raised concrete median would be constructed to provide further clarity that the left -turn lane ends at the service road. Pedestrian safety could be further improved through the addition of a bump -out island on the southwest corner to help reduce the speed of eastbound right - turning vehicles while reducing the pedestrian crossing length. We would also recommend removing the pedestrian ramps on the north side of Lydia Avenue crossing Snelling Avenue. There are currently no pedestrian heads provided at this crossing and the crosswalk is not marked so it would remove any indications that pedestrians are encouraged to cross on the north side and direct them to the better crossing on the south side of Lydia Avenue. We further recommend removing the marked crosswalk on the east leg of the Lydia Avenue/Lincoln Drive intersection. The desire would be to have pedestrians cross on the west side of the intersection where the multiple -lane threat is much less of an issue.