Asset Management for ADA Compliance Using Advanced Technologies1 2 3 Data Collection Database Analysis Barrier Ranking Franz Loewenherz Senior Transportation Planner City of Bellevue Disability Community Participation ITE 2010 Annual Meeting and Exhibit, August 11, 2010
Learning OutcomesAt the end of this presentation, you will have learned: ADA Compliance Research Partnership Inertial ProfilersCommunity Outreach GIS Analysis Corrective Measures
Americans with Disabilities Act (ADA)Title II – Government Services: Must ensure that individualswith disabilities are not excluded from programs, services, andactivities (pedestrian facilities are an example of a program).
Bellevue, Washington Downtown Bellevue Bellevue is one of five metropolitan centers in the Seattle/Puget Sound region City incorporated in 1953 and has grown through a combination of annexations and new development Bellevue currently has 122,900 residents and 145,000 jobs; forecast to grow by 28,000 residentsVision 2040 Framework and 48,000 jobs by 2030
Sidewalk & Curb Ramp Inventory Overview Top Landing Moveable ObstructionAbsence of level landing Tactile WarningFixed Obstruction Heaving Ramp cross slope Bottom Landing No Ramp Ramp Transition
Guidance for Conducting an ADA Inventory FHWA (1999) PROWAAC (2007) Texas DOT Maryland Highway AASHTO (2004) NCHRP (2008) City of Sacramento Florida DOTReference reports Inventory tools
Bellevue’s Approach1 2 3 Data Collection Database Analysis Barrier Ranking Disability Community Participation
ADA Sidewalk InventoryOn January 22, 2004, in the case of Barden v. Sacramento, the 9thCircuit Court ruled that sidewalks were a "program" under ADA andmust be made accessible to persons with disabilities.Running Slope Cross Slope Displacement Protrusions Obstructions1:20 (5%) max 1:50 (2%) max 1/4 inch max 4” max (27” - 80”) 36” clear width ADAAG 4.8 ADAAG 4.3.7 ADDAG 4.5.2 ADDAG 4.4 ADDAG 4.3.3 FHWA guidance on grade and cross-slope: “should be measured over 2 ft intervals, the approximate length of a wheelchair wheelbase, or a single walking pace.”
Technology Development Partnership Project assessed the applicability of inertial profiling technologies in identifying existing sidewalk and ramp facilities that limit access for persons with disabilities. Coordinated staffing & funding commitment from three agencies from three levels of government.
ULIP Technology Sensor box includes: 1. a displacement laser (texture/profile/height), 2. three accelerometers (inertial profiling), 3. a gyroscope (pitch, roll, yaw), 4. optical trigger (reference), 5. GPS (general location), and 6. a DMI (travel distance system). Computer and data acquisition card are used for data capture.
ULIP Data Transfer Data Capture Data AcquisitionGIS Integration Data Processing
Running Slope Findings Allow sidewalk running slope to match roadway grade. - PROWAG (not ADAAG) Digital Elevation Model 134 miles of our sidewalk facilities exceed 5% grade standard. 95 miles are attributable to the adjacency of the roadway grade. 39 miles of non-standard grade sidewalk surfaces are referenced in the City’s Transition Plan document.
Identify/ Print ADA Viewer Window Navigation Extents Locate by Toggle Bar Navigation AddressLegend/ LayersLocation Map
Compliance vs. AccessibilityADA tells us which features are non-standard …... But it doesn’t tell us which of these non-standard features should be replaced first.
Community Outreach Engaged people with disabilities to ensure to that we fully understood their challenges and priorities. December 2007: 3 Focus Groups April 2009: Field tour in partnership with King County May 2009: ADA Accessibility Open House June 2009: Written survey with more than 100 responsesPoster at Open House Mail-Back Survey Ramp Assessments
Barrier Ranking Analysis Land Use RampsStreets Paths Census Islands Activity Impedance Barrier Score Score Ranking
ADA Transition Plan Development Self Evaluation Program & Facility Accessibility 1. PROW Plan – Draft (Q1) & Final (Q2) 2. Program & Services Plan – Draft (Q3) & Final (Q4) 3. Facilities Plan – Draft (Q3) & Final (Q4)
Addressing Barriers to Accessibility Arterial with high activity &impedance scores. New sidewalk/ramps built next to new WB lane.
Curb Ramp ImprovementsFrom 2007 through 2009, Bellevue will have spent morethan $2 million to upgrade nearly 300 curb ramps citywide.
For More InformationThe ADA Sidewalk and Curb Ramp Self-Evaluation Report islocated at: http://www.bellevuewa.gov/accessibility-reports.htm “Efforts such as those at the City of Bellevue, Washington, that rely on the collection of large datasets at extremely fine spatial and temporal disaggregation levels have the potential to significantly automate the identification of non- compliant locations in the field.” NCHRP 20-07 Task 249 - Texas Transportation Institute
Thank youFranz LoewenherzSenior Transportation PlannerCity of Bellevue450 110th Ave. NEBellevue, WA firstname.lastname@example.orgPhone: 425.452.4077
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