GRAVES MILL ROAD CORRIDOR STUDY Priority I Projects: Key improvements for locations that exhibit existing safety and operational challenges that are intensified with US future growth. These locations were also a focal point during the first public meeting. The Priority I projects will be considered for the VDOT Six-Year US 501 501 Southbound Southbound Ramp Ramp Intersection Intersection Existing Conditions Existing Conditions Improvement Plan, and other regional and local transportation plans. Queuing for the eastbound right extends back through Creekside Drive, primarily during the Queuing for the eastbound right extends back through Creekside Drive, primarily during the PM PM peak. peak. Lane Lane bias bias becomes becomes an an issue issue west west of of Creekside Creekside Drive. Drive. The The eastbound eastbound queue queue in in the the right right lane lane consistently consistently does does not not clear clear the the intersection intersection at at Creekside Creekside Drive. Drive. Moderate Moderate southbound southbound right right queuing queuing for for the the off-ramp off-ramp occurs occurs during during both both peaks. peaks. Location: US 501 Southbound Ramp Intersections Existing Conditions Project Description Planning Level Costs 2040 Conditions (Coordinated Network Implemented) 2040 No No Build Buildapproach Conditionsto (Coordinated Network Implemented) ▪▪ Reconfigure eastbound a single thru lane Eastbound queuing and delays increase substantially, Old Six Year Eastbound queuing and delays increase substantially, extending extending back back well well beyond beyond Old Improvement Graves Mill and dual, controlled rights. Convert the existing right Graves Mill Road. Road. Phase Program Unable to the cycle Unable to clear clear the intersection intersection for multiple cycle lengths. lengths. turn lane to a travel lane by extending backfor tomultiple Creekside Safety Safety conditions conditions likely likely to to deteriorate deteriorate due due to to congestion congestion and and “queue “queue jumping” jumping” from from lane lane bias. bias. Drive. Southbound on the off-ramp. Southbound right right will will experience experience significant significant delays delays and and queuing queuing on the off-ramp. Preliminary Engineering $ 697,821 ▪▪ Queuing for the eastbound right extends back through Creekside Drive, primarily during the PM peak. ▪▪ Lane bias becomes an issue west of Creekside Drive. The eastbound queue in the right lane consistently does not clear the intersection at Creekside Drive. ▪▪ Moderate southbound right queuing for the off-ramp occurs during both peaks. ▪▪ Widen the southbound on-ramp to accommodate two Project Description Description lanes that willProject merge to a single lane, before merging on ROW/Utility $ 473,149 ▪▪ Eastbound queuing and delays increase substantially, extending back well beyond Old Graves Mill Road. Provide Provide dual, dual, controlled controlled rights rights to to US US 501 501 southbound. southbound. This This will will require require widening widening the the on-ramp on-ramp to accommodate two lanes that will merge to a single lane at US 501. to US 501. to accommodate two lanes that will merge to a single lane at US 501. ▪▪ Unable to clear the intersection for multiple cycle lengths. Construction Provide at Drive Provide overhead overhead signage signage at Old Old Graves Mill Road Road and and Creekside Creekside Drive to to inform inform drivers drivers$ 4,993,528 ▪ ▪ Provide a channelized southbound right, freeGraves flow Mill ▪▪ Safety conditions likely to deteriorate due to congestion and “queue jumping” from lane bias. that both eastbound thru lanes can directly access the US 501 on-ramp. that both eastbound thru lanes can directly access the US 501 on-ramp. Graves MillCorridor Corridor Plan Recommendation at Graves Mill Road/501 Expressway SB lane. The lane will end aaaschannelized, a dedicated right turn lane atflow Graves Mill Improvement Recommendation at Graves Mill Road/501 Expressway SB Provide southbound right free new ▪▪ Southbound right willPlan experience significant delaysImprovement and queuing on the off-ramp. Costs outside $ 6,164,498 Provide channelized, southbound right free flow lane. lane. A ATotal new receiving receiving outside lane lane along along Graves Mill Corridor Plan Improvement Recommendation at Graves Mill Road/501 Expressway SB westbound Graves Mill Road will connect with the existing dedicated right turn lane Creekside Drive.westbound Graves Mill Road will connect with the existing dedicated right turn lane at at 2040 No Build Conditions (Coordinated Network Implemented) Creekside Creekside Drive. Drive. Lengthen Lengthen the the westbound westbound left left turn turn lane lane to to US US 501 501 southbound. southbound. Improvement Recommendations at US 501 Southbound Ramp Intersection Intersection Eastbound Eastbound Right Right Southbound Southbound Right Right Overall* Overall* Level Level of of Service Service (Delay (Delay in in Seconds) Seconds) 2040 2040 2040 No No Build Build 2040 Build Build AM PM AM PM AM PM AM PM E FF (144.1) AA (<5.0) AA (<5.0) E (56.7) (56.7) (144.1) (<5.0) (<5.0) FF (173.0) FF (173.0) AA (<5.0) AA (<5.0) (173.0) (173.0) (<5.0) (<5.0) D E AA (9.3) AA (<5.0) D (38.2) (38.2) E (75.0) (75.0) (9.3) (<5.0) * Represents the intersection's average delay. *Represents *Represents the the intersection’s intersection’s average average delay. delay. d Intersection Intersection oa Cr es ksi ee av Gr ill R M UF 50 1S de Eastbound Eastbound Right Right Southbound Southbound Right Right Overall* Overall* Dr ou thb *Represents the sum of all approach queues. *Represents *Represents the the sum sum of of all all approach approach queues. queues. ive ou nd Ra mp Project Benefits The US 501 southbound ramp will be widened to accommodate two lanes that will merge to a single lane, before on to ramp The US 501merging southbound US 501. US 501 southbound ramp willThe be widened to accommodate be widened to accommodate twowill lanes that will merge to a two lane, lanesbefore that will merge on to ato single merging 25 50 before 100 150 200 ft. on to N501.0 lane, merging USsingle US 501. LEGEND EXISTING ROADWAY LEGEND LEGEND PARCEL LINE* EXISTING ROADWAY www.gravesmillplan.com EXISTING ROADWAY PROPOSED ROADWAY ADDITION PROPOSED ROADWAY ADDITION N 0 25 50 100 150 200 ft. 25Database. 50 100 N City’s0 GIS *Parcel boundary is an approximation based on the PROPOSED ROADWAY ADDITION PARCEL LINE* PARCEL LINE* th 95 95th Percentile Percentile Queuing Queuing (in (in Feet) Feet) 2040 No Build 2040 2040 No Build 2040 Build Build AM PM AM PM AM PM AM PM 340’ 1,698’ <50’ <50’ 340’ 1,698’ <50’ <50’ 383’ 826’ Free Free 383’ 826’ Free Flow Flow Free Flow Flow 1,381’ 3,177’ 981’ 278’ 1,381’ 3,177’ 981’ 278’ 150 200 ft. *Parcel boundary is an approximation based on the City’s GIS Database. *Parcel boundary is an approximation based on the City’s GIS Database. ▪▪ Substantial reduction in movement delay and overall delay. ▪▪ Overall queues are reduced by over 30 percent for the AM peak, and over 90 percent for the PM peak. ▪▪ Better lane management improves safety conditions and reduces lane bias; thereby reducing eastbound queuing at Creekside Drive and Old Graves Mill Road.