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149 APPENDIX J Sample RSA Reports
150 PRELIMINARY DESIGN ROAD SAFETY AUDIT June 29, 2001 (Note: This is a real Road Safety Audit report, but the names of the roads and the County have been changed.) Project Location: The project is located at the existing interchange of I-118 and SR 10/Riverview Drive. The project extends along Riverview Drive from the Mountain Drive/Riverview Drive intersection easterly to a point approximately 800 feet west of Imperial Drive/ Riverview Drive intersection. The project also includes realignment of Parkway Drive to the east to intersect Riverview Drive at an existing median opening across from the Garden Center driveway. Synopsis of Approved Concept: The project proposes to reconstruct the I-118 interchange at Riverview Drive and relocate Parkway Drive away from the northbound ramp location. The Riverview Drive bridge over I-118 would be replaced along with modifications to the I-118 bridge College Park Road. Audit Team: District Design Engineer (Team Leader) District 6 Traffic Engineer District 6 Pre-Construction Engineer District 6 Construction Engineer District 5 Traffic Operations Engineer District 2 Construction Estimator Urban Design Engineer District 1 Traffic Engineer Information Used for Audit: â¢ Concept Report â¢ Revised Concept Report â¢ Preliminary Plans â¢ Site Visit Findings: Median nose point location at Mountain Drive needs to be redesigned. Check all intersections for pedestrian refuge provisions in medians and islands. Heavy pedestrian use was observed upon site visit. Plans not up to date with revised concept audited. Median opening spacing is less than 660 foot standard. This may introduce operational and safety problems. Potential weave problem from Ramp B to Northern Avenue. Lighting of interchange is not in plans and should be considered, particularly under the new Riverview Drive Bridge over I-118. Driveway profiles at Sta 110+70 LT & RT should be treated as side street to provide smoother alignment. These serve major government complex facilities. Some drainage issues left unresolved in the median. Typical sections need refined to address how turn lane is to be handled.
151 May need additional R/W for Signal Strain Poles to provide for horizontal clearance. Consider increasing the radius of Ramp C/Riverview Drive to 75 ft. Examine operation of Emergency vehicles in the project vicinity. Consider prohibiting left turn from driveways at Sta 110+70 LT and RT. Consider removing unnecessary driveways. Consider adding stamped colored concrete for 18 inches behind the curb to serve as a buffer from the motor vehicles. _________________________________________________ Team leader July 1, 2001
152 ROAD SAFETY AUDIT REPORT Intersection VT Route 100 / US 2âClass I TH Washington County 05 June 2001 (Note: This is a real Road Safety Audit report, but the names of the roads and the County have been changed.) Stage of Road Safety Audit The audit review team reviewed planning stage documentation for this report. Description of Project and Background Proposed roundabout at the westerly intersection ofâRoute #220 and US Route #35 within the Town Highway limits of Village in the city of XXX. That information as listed below resulted in the recommendation of a roundabout at this location. RSA Team Review: List of RSA Audit Team The Road Safety Audit Team met on Tuesday, June 5, 2001, to review the subject project, Team members included: â¢ FHWA Safety Engineerâ(Team Leader) â¢ Planning EngineerâDOT â¢ Construction EngineerâDOT â¢ Traffic EngineerâDOT Information Used in the Completion of the Road Safety Audit â¢ Village of XXXâTransportation Infrastructure, Parking, and Circulation Study â¢ Local Knowledge of Project Area â¢ Project Manager Presentation of Project Area and History â¢ MUTCDâMillennium Issue â¢ AASHTOâGreen Book, 2001 Edition â¢ State Access Policyâ1999 Edition A Listing of Potential Safety Concerns This section describes overall corridor and specific area concerns related to safety. 1. Pedestrian Mobility to include School and Recreational Areas 2. Access to Abutting Properties 3. Bicycle Mobility through Proposed Improvement 4. Proximity to Recreational and Elderly Use Facilities 5. Ability of Improvement to Accommodate Traffic Volumes 6. Speed of Oncoming Traffic 7. Ability of Improvement to Accommodate Variety of Traffic Types 8. Ability of Improvement to Accommodate Turning Movements 9. Accommodation of Union Street Leg 10. Proximity of Railroad OverpassâSight Distance (pedestrians + vehicles) 11. Night Visibility 12. Work Zone Safety during Construction Activities 13. Ability to Appropriately Maintain Facility during Winter Season 14. Encroachment on Limited-Access ROW 15. Sight Distance/Hazard Introduction with Introduction of Landscaping Plan 16. Proposed Improvement to âCorrectâ Current Accident History? (HAL) 17. Driver Expectancy
153 Audit Team Findings and Guidance 1. Finding 1(a): Abundance of elementary school age and younger children that must cross US 21 and Highway 220 to get to recreational facilities and school premises. Guidance: Investigate possibility of eliminating proposed crosswalks (6) and determine through local input preferred path of travel. Additionally, in conjunction with that above, investigate possibility of eliminating proposed sidewalk to further define pedestrian travel way. Would propose providing a school crosswalk guard under state guidance during those hours of school activity and sign those crosswalks as such. Finding 1(b): In that there is present in the project area a significant number of persons elderly and/or of diminished capacity. Guidance: Would again propose investigating the possibility of simplifying pedestrian traffic patterns in an effort to reduce the decision-making process while negotiating the proposed improvement. 2. Finding: There is at least one drive that introduces possible conflict to those traffic patterns that will be the result of constructing the proposed improvement. Guidance: Explore possibility of improved access control. Suggestions would be to eliminate drive to the pool area and couple with other access present in the area or provide new access through other existing facility or through acquisition of property. Also consider acquisition of Local XXX paint property in an effort to eliminate conflicting access and perhaps provide additional green space with that area purchased. 3. Finding: Due to adjacent land uses (recreational areas, housing, school), bike presence in the proposed project area is prevalent. Guidance: Would consider bike path independent of proposed project to divert bicycle traffic away from the project area. 4. Finding: Projected that future traffic will result in proposed improvement being functionally obsolete. Guidance: Promote alternate work schedules at State complex. Explore opportunities for park and ride lots for I-90 and US 21 (west of intersection) traffic. 5. Finding: Concern of exit speed into village downtown will accelerate to excess. Guidance: Continuation and perhaps accentuation of traffic control for US 21 west traffic. Investigate possibility of installing rumble strips and speed carts for the short term for incoming traffic. 6. Finding: Presence of large vehicles to include national guard vehicles, delivery trucks, semi trailers, emergency vehicles, and school buses raise turning movement questions. Guidance: Consider installing temporary installation at preliminary design stages prior to committing to a final design. Consider revising simple roundabout design to a âkidneyâ shape design in an effort to smooth traffic flow and further accommodate Union Street. 8 and 9 (see 7 above). 10. Finding: Questionable sight distance at this structure. Guidance: As design progresses, ensure that sight distance is greater that minimum. 11. Finding: Question of sufficient current illumination. Guidance: Consider incorporation of street lighting in project design.
154 12. Finding: Concern of all traffic types being to safely traverse during construction activities. Guidance: Traffic control details are a must to accommodate pedestrian and bicycle traffic during construction. Consider oversize vehicles that will be present during project construction and provide appropriate traffic control devices and lane widths. Consider phased construction. Consider local events that may occur during the construction phase and provide appropriate traffic control. 13. Finding: Introduction of curbing and other vertical elements cause concern over winter maintenance activities. Guidance: Review all curbing lines and other vertical elements to perhaps provide smooth transitions to facilitate snow removal. Consider design to provide for durable materials for vertical elements. Ensure design can be maintained by standard class 17 dump trucks. 14. Finding: Possible encroachment on limited access row. Guidance: Review further designs such that existing limited access limits are maintained and not compromised. 15. Finding: Concern of sight distance with introduction of landscaping elements. Guidance: Consider the longer term in landscape planting material for impacts on sight distance issues. 16. Finding: Question of whether proposed design addresses accident history of the area being a known HAL. Guidance: Project or predict the effects of the design on crashes and monitor the intersection for five years to demonstrate actual effect. 17. Finding: Question as to whether the ânewâ concept of proposed design will fit with driver expectancy. Guidance: Provide adequate and standard warning devices to warn, alert, and educate drivers. Consider use of educational plaques under warning signs for a period of three years. Working with the school and recreation department, distribute brochures and educate the youths in the proper use of crossings at the roundabout. _________________________________________________ Team Leader June 7, 2001