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budget for aviation and dulles corridor enterprise funds

budget for aviation and dulles corridor enterprise funds

2012 BUDGETMetropolitan

2012 BUDGETMetropolitan Washington Airports Authority(Route 602), and Fairfax County Parkway (Route 7100). The study will determine warrantsfor widened ramps, direct access flyover connections, and/or unique configurations that willoptimize interchange efficiency. This will involve obtaining recent traffic data, performingtraffic demand and usage analyses, and developing preliminary alignment plans. Ifwarranted, a full interchange justification or modification report may be required (as aseparate task).Ultimate Interchange Configuration Design, $500,000. This project is to develop preliminarydesign plans concurrent with NEPA documentation for the anticipated improvements. Thetask will utilize the traffic warrants and operational analyses performed during the studyphase. This will involve preliminary engineering, NEPA documentation, and design inadvance of selecting a contractor and delivery method for construction of the project. It isanticipated that one major interchange configuration design will occur every 4 to 5 years.Mobility and Capacity Improvement ProjectsRoute 606 Widening, Phase I Study, $550,000. This project is to perform a study within theboundaries of Route 606 in the immediate vicinity of Dulles International and the Dulles TollRoad Corridor to determine the warrants for widening and upgrading the performancecharacteristics of this roadway. This will involve obtaining recent traffic data; performingtraffic demand and access warrants and preliminary alignment plans.Route 606 Widening, Phase I (Design), $4,000,000. This Capital Improvement Projectutilizes the traffic warrants and operational analyses performed during the study phase toprovide preliminary and design development concurrent with NEPA documentation for theanticipated improvements. This will involve preliminary engineering, and NEPAdocumentation, and design in advance of selecting a contractor and delivery method forconstruction of the project.Route 606 Widening, Phase I (Construction), $20,000,000. This project encompassesconstruction activities for the improvements to Route 606. This will involve significantmaintenance of traffic operations during construction to maintain access for the multipletenants along Route 606. Major construction items/activities would include pavement subbase,pavement, pavement markings, traffic control and signing.Hunter Mill Road Improvements, $4,900,000-Planned. This study will assess trafficmovements at the intersection of Hunter Mill Road (Rt. 674) and the Dulles Toll Road todetermine appropriate safety and capacity improvements. The study area will include SunsetHills Road north of the DTR and Sunrise Valley Drive (Route 5320) to the south of DTR aswell as the on-ramps and off-ramps. The design phase will involve preliminary engineering,NEPA documentation, and design in advance of selecting a contractor and delivery methodfor construction of the project. This project has two phases of development, short-term andlong-term. The short-term improvements will be a series of modest improvements designedto enhance safety, circulation and mobility. The long-term improvements are dependent onfuture studies which will determine the need and ability to increase the capacity of theinterchange.214

2012 BUDGETMetropolitan Washington Airports AuthorityFairfax County Parkway Improvements, $4,300,000-Planned. Project includes short-termand long-term improvements. The short-term improvements include modest lanereassignments to improve safety and traffic circulation at signalized intersections of FairfaxCounty Parkway and the Dulles Toll Road. The long-term improvements include a studyalong WB mainline Dulles Toll Road (Rt. 267) between Fairfax County Parkway (Rt. 3000)and Reston Parkway (Rt. 602) to determine the need for an auxiliary lane. The provision ofan auxiliary lane would facilitate weaving of entering and exiting traffic between the twolocations, primarily during peak traffic flow periods. This will involve obtaining recent trafficdata, performing traffic demand warrants, and developing preliminary design plans. Thedesign phase of the project will include developing preliminary design plans concurrent withNEPA documentation for the anticipated improvements. The task will utilize the trafficwarrants and operational analyses performed during the study phase. This will involvepreliminary engineering, NEPA documentation, and design in advance of selecting acontractor and a delivery method for construction of the project.Reston Parkway Improvements, $4,300,000-Planned. This project consists of modificationsto the intersections of the Reston Parkway and the Dulles Toll Road ramps with right and leftturn lane modifications designed to enhance safety, circulation and mobility. The long termimprovements will include a study along WB mainline Dulles Toll Road (Rt. 267) betweenReston Parkway (Rt. 602) and Wiehle Avenue (Rt. 828) to determine the need for an auxiliarylane. The provision of an auxiliary lane would facilitate weaving of entering and exiting trafficbetween the two locations, primarily during peak traffic flow periods. This will involveobtaining recent traffic data, performing traffic demand warrants, and developing preliminarydesign plans. The design will involve preliminary engineering, NEPA documentation, anddesign in advance of selecting a contractor and a delivery method for construction of theproject.Ramp and Ramp Terminal Operations Study, $500,000. This project is to assess theoperations of the ramps entering or exiting Dulles Toll Road and the ramp terminals at thesurface streets. The study will evaluate the capacity of each entrance/exit ramp with regardto the number of lanes, lane use, acceleration/deceleration lane length, etc. Signal timingsand phasing at the ramp termini of diamond interchanges will also be analyzed for optimalintersection performance (i.e., overall intersection delay, approach delay, queue lengths,etc.). It is anticipated that simulation software will be used to determine current performancemeasures and to evaluate potential improvements (e.g., lane use changes, signaltiming/phasing changes, acceleration/deceleration lane extensions, etc.). The project willinvolve obtaining current traffic data, signal timings and phasing, and geometriccharacteristics. This may require coordination with VDOT and/or local jurisdictions.Spring Hill Road Study, $100,000-Planned. This project will perform evaluations of theSpring Hill Road interchange at Dulles Toll Road (Rt. 267). This study will identifydeficiencies within the intersection and exit/entrance ramps leading to the Dulles Toll Roadand provide short and long-term solutions. This effort could involve obtaining recent trafficdata and construction plans, performing basic traffic operations analyses, and conductingfield visits to observe localized conditions.215

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