Pavement Management Program
The Oxford DPW utilizes a data-driven pavement management program to objectively prioritize and schedule roadway repairs based on our available budget. The DPW's program relies on pavement distress data collected on an annual basis. A quarter of the Town's streets are surveyed per year, at which time pavement distresses are noted and entered in our data management software. Based on the assessments streets are scored according to a Pavement Condition Index (PCI) from 0 to 100; 0 indicative of an impassible street and 100 representing a newly paved road. Roads are programmed for repair based on a variety of factors - most notably PCI and roadway classification (i.e. arterial, collector, local). For example, an arterial street with a fairly low PCI will be weighed far more heavily in the analysis than a local street with the same PCI due to traffic volumes and public safety implications.
The DPW also evaluates Oxford's annual pavement program on the basis of the Federal Highway Administration's (FHWA) Remaining Service Life (RSL) concept. The concept says that without any improvements in a given year, a 100-mile roadway network loses 100-mile years of service life. Therefore, if Oxford's 90-mile pavement network was left untouched in a given year, we would expect a net loss of 90-mile years of service life. For the sake of analysis, each repair alternative we employ adds a designated amount of mile-years back into our network. You can find more information on the amount of life extension we expect to see in the description for each repair alternative.
The goal of evaluating Oxford's pavement network on the basis of PCI and RSL is to ensure we are maximizing our available budget, so we maintain level network conditions, at the very least. We do not want to see a drop in network PCI year over year, nor a net loss in network mile-years. Both metrics allow us to evaluate various funding levels and project the impact said funding will have on Oxford's pavement network. This is a critical step in developing our program, demonstrating funding needs, and advocating for additional funding.
The DPW's pavement management program incorporates several pavement repair alternatives to address distresses at all phases of the pavement life cycle. These are our 'tools in our toolbox' to address Oxford's roadway pavement network. The scale and scope of repair alternatives ranges from routine preventative maintenance techniques such as patching/pothole repair and crack sealing, to more intensive repairs such as reclamation and full-depth roadway reconstruction. The tenet of a sound pavement management program is to implement the right repair alternative on the right road at the right time. This principle, as well as the pavement lifecycle, is reflected on the pavement deterioration curve chart.
View the Oxford DPW's current 3-year pavement management plan (PDF).Please note our plan is just that, and while all plans begin with the best intentions, things do not always go according to plan. The DPW mentions this only to call attention to the numerous factors that impact how much we can accomplish each year, including but not limited to funding, grant outcomes, and construction market conditions. So, while the current plan serves as our road map over the next few years for pavement repairs, please note the plan is subject to change based on numerous factors that our outside our control. The chart provided shows a summary of our 3-year plan by repair alternative.
|Bonded Wearing Course
|Mill and Overlay
|Shim and Overlay
|Stabilized Full Depth Reclamation
|Traditional Full Depth Reclamation
Total: 86,736 feet (16.43 miles)
View the links for a brief description of each repair alternative the DPW utilizes to address the Town's aging roadway infrastructure: