Wesley Housing Development Corporation Trenton Street Residential 1
2 Site Location
Multimodal Traffic Study Summary Existing Conditions (2017) 13 study intersections. -Scoped with Arlington County DES staff All study intersections currently operate at overall acceptable levels of service during AM & PM peak hours. Development Program & Trip Generation Development Program: 19 Townhouses and 117 Dwelling Units (Apartments) Retain Existing 63 Units in Whitefield Commons Site Trips: 53 AM Peak Hour Trips and 68 PM Peak Hour Trips (Assumes a 30% non-auto adjustment) Future Traffic Forecasts (2020) Buildout year of site assumed to be 2020. Future traffic forecasts include a 0.5 percent growth rate. Summary of Results/Improvements The redevelopment would have a negligible overall impact on the adjacent roadway network. Under future conditions with redevelopment, the study intersections would continue to operate at overall acceptable levels of service. New streetscape on Service Road adjacent to Multifamily building. New streetscape and sidewalks along N. Trenton Street. New curb extension and marked crosswalk at Service Road/N. Trenton Street intersection. 3
Multimodal Facilities 11 Docks 15 Docks 4
Existing and Proposed Vehicular Access Points North Thomas Street North Trenton Street 5
6 Vehicular Circulation
Pedestrian Circulation North Thomas Street North Trenton Street 7
8 North Trenton Street Section
9 Arlington Blvd Service Road Section
Parking and Loading Summary Vehicular Parking Summary Townhouses 1 : 42 spaces Apartments 2 : 104 spaces Compact: 31 spaces (30%) Whitefield Commons 3 : 43 spaces Total: Parking Ratio Townhouses: 2.20 spaces/unit Apartments: 0.89 spaces/unit Whitefield: 0.68 spaces/unit Bicycle Parking 48 Spaces Long Term 6 Spaces Short Term 189 spaces Notes: 1. Townhouse spaces are a combination of 38 garage spaces (2 per unit) and four (4) surface spaces for visitors. 2. Apartments would be served by structured parking. 3. Whitefield Commons is served by existing surface parking. GLUP Designation Low-Medium Residential Current Zoning RA8-18: 2.97 acres R-6: 0.98 acres Proposed Zoning RA8-18: 3.22 acres R15-30T: 0.74 acre Loading 2 Loading Berths (Multi-Family Building) 10
Additional Parking Considerations Arlington County Off-Street Parking Policy Affordability of Housing Unit City of Alexandria Minimum Spaces per Unit (Ratio) 60% of AMI 70% of market-rate minimum (0.70) 50% of AMI 50% of market-rate minimum (0.50) 40% of AMI 0 (0.00) Source: Off-Street Parking Policy for multi-family development in the Rosslyn-Ballston Corridor and Route 1 Metro corridors. Affordability of Housing Unit Parking Ratio 60% of AMI 0.75 space/unit 50% of AMI 0.65 space/unit 30% of AMI 0.50 space/unit Note: Additional credits allowable for sites proximity to metro or BRT stops, walkability index score, nearby bus routes, and amount of studio units within development. Recently Approved Affordable Developments Development Units Parking Spaces US Census Data Vehicles per Household (Rental) No Vehicle 53% 1 Vehicle 38% 2 Vehicles 9% 3 Vehicles 0% 4 or More Vehicles 0% Total 100% Average Parking Ratio Parking Ratio Percentage Distance to Metro Berkeley 257 240 0.93 1.35 miles 0.56 space/unit Source: Information based on American Fact Finder; 2012-2016 American Community Survey of Renter Occupied household by vehicles available. Census Tract 1020.03. Area bounded by 4 th Street N., N. Oakland Street, Arlington Boulevard, and N. Henderson Road. 11
Parking Ratio (Spaces/Unit) 1 0.9 Parking Ratio Comparison Code Requirement 0.93 0.89 0.8 0.7 0.7 0.75 0.68 0.6 0.56 0.5 0.4 0.3 0.2 0.1 0 12
13 On-Street Parking Restrictions
Preliminary Transportation Demand Management (TDM) Plan Physical Facilities and Improvements Streetscape Improvements along the Arlington Boulevard service drive (western portion) and N. Trenton Street. The existing streetscape on N. Thomas Street is proposed to remain. Installation of crosswalk and bump-out at the Arlington Boulevard service drive and N. Trenton Street intersection. Bicycle parking/storage facilities within the multi-family building. Transportation information display within the multi-family building. Promotions, Services, Policies Provide a one time, per person, the choice of a Smartrip card, one year bikeshare membership, or one year carshare membership. Distribute new-resident packages. Provide reference to Ballston-MU Metro station and local bus routes in promotional materials and advertisements for the building. Participate in regionally sponsored traffic mitigation promotions. Assist the County in implementing a transit-advertising program. Performance and Monitoring Conduct a transportation performance monitoring study at two (2) years and five (5) years after issuance of first Certificate of Occupancy. Submit an annual report to the County describing TDM related activities. 14
15 Thank You
Rendered Site Plan North Thomas Street North Trenton Street ` 16
Parking Garage Layout Level P1 Level P2 (Ground) Garage Entrance Bike Room 17
18 Truck Turning Diagram (SU-30)
19 Truck Turning Diagram (Garbage)
20 Census Tract 1020.03