Going from 4 Lanes to 3 Lanes Jefferson City’s McCarty Street Project

McCarty Street Before Project ADT 8700 (peak hour 15% AM and 15% PM) ADT 8700 (peak hour 15% AM and 15% PM) Corner mounted pedestal signals Corner mounted pedestal signals 10 ft. through lanes 10 ft. through lanes 8 ft. parking stalls on both sides of street 8 ft. parking stalls on both sides of street 8 ft. right turn lanes at intersections 8 ft. right turn lanes at intersections No left turn pockets at intersections No left turn pockets at intersections Several driveways directly onto McCarty Several driveways directly onto McCarty

Typical Corner Mounted Signal

Selling the McCarty Street Project to the Community Two separate traffic consultants provided LOS analysis for the three intersections Two separate traffic consultants provided LOS analysis for the three intersections City staff completed an accident study City staff completed an accident study Approval by the City’s Transportation & Traffic Commission and Public Works & Planning Committee Approval by the City’s Transportation & Traffic Commission and Public Works & Planning Committee

McCarty Street LOS Results  TranSystems Corporation (current traffic with 3 vs 5 lane, both LOS B)  George Butler Associates (future traffic utilizing county-wide traffic model, land use based, 3 lane section, LOS B)

McCarty Street Project Scope Provide new overhead mounted signals and improved lighting Provide new overhead mounted signals and improved lighting Re-stripe to reduce lane cross section and organize lane configurations at intersections Re-stripe to reduce lane cross section and organize lane configurations at intersections Maintain on street parking Maintain on street parking

McCarty Street Project Scope 14 ft. centered turn lane 14 ft. centered turn lane 12.5 ft. through lane 12.5 ft. through lane 9 ft. right turn lane 9 ft. right turn lane 2 ft. positive offset in left turn lane at signals 2 ft. positive offset in left turn lane at signals

Jefferson City’s McCarty Street Project Project Design Consultant: TranSystem Corp Project Design Consultant: TranSystem Corp Contractor, Meyer Electric Contractor, Meyer Electric 6 month project started in October 04 and finished in March 05 6 month project started in October 04 and finished in March 05 Striping work first followed by signal installation Striping work first followed by signal installation Project Construction Cost, $293,000 Project Construction Cost, $293,000 $266,000: 3 New Signals, Lighting and Controllers $266,000: 3 New Signals, Lighting and Controllers $27,000: remove markings and stripe 17 City Blocks $27,000: remove markings and stripe 17 City Blocks

Project Payoff 40 crashes per year prior to project (5 year average) 40 crashes per year prior to project (5 year average) 10 crashes first year after project (1 year, 2005) 10 crashes first year after project (1 year, 2005) 30 fewer crashes per year after project 30 fewer crashes per year after project 75% crash reduction 75% crash reduction

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