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MassDOT presents mid‑performance PM2/PM3 update; Cape Cod slightly behind pavement and bridge targets
Summary
MassDOT staff told the Cape Cod MPO that pavement and bridge PM2 measures are slightly lagging targets because of rising construction costs, while statewide PM3 reliability and emissions measures are meeting two‑year targets; MassDOT emphasized the methodology for travel‑time reliability and noted Cape Cod has no interstate miles.
MassDOT staff presented mid‑performance results for federal performance measures at the Oct. 21 Cape Cod MPO meeting, reporting that the state is meeting several PM3 two‑year targets while PM2 (pavement and bridge condition) is slightly behind target on the Cape.
Annabelle, representing MassDOT Highway, said Cape Cod accounts for about 7% of the state’s non‑interstate National Highway System mileage and that construction cost inflation has constrained project scope, slowing measurable pavement and bridge condition improvements. "We are slightly lagging our target... mostly to do with the rising construction costs that are diminishing our returns," she said.
Annabelle reported 47 NHS bridges on the Cape and said preservation work funded through BIL and the NextGen Bridge program has focused on keeping structures from declining further; she said the investments should show in the performance metrics by the end of the current period or the next.
Chris Clem (MassDOT Office of Transportation Planning) reviewed PM3 measures for travel‑time reliability and truck travel time reliability, explaining the level of travel time reliability (LOTTR) uses the 50th and 80th percentile travel times and marks a segment reliable if the 80/50 ratio is below 1.5. Clem said the statewide mid‑performance values meet the two‑year targets and that emissions reductions are reported via CMAQ programs (Dukes County is the only nonattainment area in the state for those EPA designations).
Members asked whether the underlying data could be zoomed to Cape‑specific corridors (for example Route 6) and whether truck reliability could be reported at the non‑interstate level; Clem said the data platform can show non‑interstate detail and that staff would follow up with additional snapshots.
What’s next: MassDOT will continue to refine regional analyses, share route‑level snapshots on request and return to the MPO for the next reporting cycle in two years.
Sources: Annabelle (MassDOT Highway presentation) and Chris Clem (MassDOT OTP); Oct. 21 MPO meeting transcript.
