Performance-based Planning and Programming—Travel Time Reliability Targets

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The Boston Region MPO envisions an equitable, pollution-free, and modern regional transportation system that gets people to their destinations safely, easily, and reliably, and that supports an inclusive, resilient, healthy, and economically vibrant Boston region.

-Destination 2050 Vision

On January 5, 2023, the MPO board voted to adopt the Commonwealth of Massachusetts’ two-year and four-year performance targets related to travel time reliability. The Commonwealth and MPOs are required to establish four-year targets for these measures, which pertain to travel time reliability performance for freight and all roadway users. By adopting these targets, the MPO agrees to plan and program projects that help the Commonwealth achieve its travel time reliability targets. For more information about these measures, CY 2023 targets, and related processes, please refer to the memorandum titled Travel Time Reliability Performance Targets—2023 Update (PDF) (HTravel Time Reliability Performance Targets—2023 Update TML).

Baseline Values and Targets for Travel Time Reliability
Network	Measure	2021 Measure Value (Baseline)	Two-Year Target (CY 2023)	Four-Year Target (CY 2025)
Massachusetts—Interstate Highway System	Percent of person-miles on the Interstate Highway System that are reliable	84.2%	74.0%	76.0%
Massachusetts—Non-Interstate NHS System	Percent of person-miles on the non-Interstate NHS that are reliable	87.9%	85.0%	87.0%
Boston Region—Interstate Highway System^a	Percent of person-miles on the Interstate Highway System that are reliable	71.4%	N/A	N/A
Boston Region—Non-Interstate NHS System^a	Percent of person-miles on the non-Interstate NHS that are reliable	81.7%	N/A	N/A

Note: The two-year target reflects conditions as of the end of CY 2023, and the four-year target reflects conditions as of the end of CY 2025.
a The baseline values for the Boston region that are shown in this table were calculated in 2022.
CY = calendar year. MPO = metropolitan planning organization. N/A = not applicable. NHS = National Highway System.
Sources: National Performance Management Research Data Set, Cambridge Systematics, Massachusetts Department of Transportation,
and the Boston Region MPO staff.

Baseline Values and Targets for Travel Time Reliability
Network	Measure	2021 Measure Value (Baseline)	Two-Year Target (CY 2023)	Four-Year Target (CY 2025)
Massachusetts—Interstate Highway System	Truck Travel Time Reliability Index	1.61	1.80	1.75
Boston Region—Interstate Highway System^a	Truck Travel Time Reliability Index	2.03	N/A	N/A

Note: The two-year target reflects conditions as of the end of CY 2023, and the four-year target reflects conditions as of the end of CY 2025.
^a The baseline values for the Boston region that are shown in this table were calculated in 2022.
CY = calendar year. MPO = metropolitan planning organization. N/A = not applicable. RITIS = Regional Integrated Transportation Information System.
Sources: National Performance Management Research Data Set, RITIS, the Massachusetts Department of Transportation,
and the Boston Region MPO staff.