Clarkston & Asotin Co Transportation Plan
The LCVMPO is looking for qualified firms to develop a local transportation plan for the City of Clarkston and the urbanized area of Asotin County. Proposals are due February 9, 2018, 5:00 pst.
Questions received by the January 19th deadline and corresponding answers:
- What intensity of conditions inventory is anticipated?
Any pavement assessment data should be collected using the pavement condition index (PCI).
- Does the jurisdiction anticipate use of a van to perform continuous conditions survey, or could visual survey on an intervals basis suffice?
Pavement assessment should be done using the Pavement Surface Condition Field Rating Manual for Asphalt Pavements, which can be found on the County Road Administration Board’s website at the following link: Pavement Surface Condition Field Rating Manual for Asphalt Pavements
- How many miles of paved and gravel roads would be included?
The City of Clarkston has 62 lane miles. The county has approximately 160 lane miles of paved roads within the urban boundary. 41 miles of the county’s urban routes are designated as collectors or arterials and have current PCI data. The county does not view collection of pavement assessment for all urban local access roads as a major priority for this plan. There are minimal county gravel roads within the urban area, and extensive assessment of these roads are no viewed as a major priority for this plan.
- What level of current pavement conditions information might already be available for use?
Asotin County has current PCI data for all collectors and arterials within the urban boundary. Clarkston has no information.
- For the Pavement inventory and condition evaluation approximately how many lane miles are within the study limits? Would the pavement inventory include the state highway segments?
The City of Clarkston has 62 lane miles. Asotin County has data collected for all urban arterials and collectors. If budget allows, additional inventory on certain county roads would be optimal to verify that the County’s maintenance standards are adequate in preserving the pavement. No pavement inventory will be necessary for state highway segments.
- What, if any, pavement management software is currently used by the City of Clarkston and Asotin County?
Asotin County tracks all pavement management data for urban arterials and collectors in Mobility. Mobility is a County Road Administration Board (CRAB) road management software. The City of Clarkston currently does not utilize a pavement management software; data will need to be organized in an excel spreadsheet.
- To what extent is identifying deficient infrastructures anticipated? Specifically are bridge condition ratings part of this study? Assessment of deficient infrastructure will include but not be limited to: signage, missing/deficient sidewalks, missing/deficient ADA ramps, unlit or deficient lighting at intersections, pavement condition assessment, striping, and missing/deficient curb gutter. The specifics of methods of collection and depth of analysis will be negotiated with the selected consultant prior to execution of the contract. There will be sections the county that don’t have curb/gutter and sidewalk because that is the adopted street section. A GIS layer of the identified deficiencies will be request. There will not be any bridge condition ratings in this study.
- The RFP shows the QRS II Traffic Model as being a resource. The RFP also mentions that the study area will be reviewed for potential changes. Do you anticipate that the demographic inputs and traffic volume outputs are the primary aspects of the QRS II model that will be used? Or do you expect that a review of land use and the roadway network will result in additional traffic model runs to represent a 20 year forecast for evaluating LOS?
Clarkston and Asotin County have not experienced dramatic population growth or decline in recent years. The expectations are that this pattern will continue moving ahead. The consultant may be asked to evaluate the study area and provide input whether the boundaries should be adjusted to better reflect the transportation network as a whole. It is not expected that an evaluation of the study area will produce significant impacts to the model that will affect forecasting and evaluating LOS of the network.