[
  {
    "source_id": "s1",
    "description": "Federal Highway Administration. Jason’s Law Truck Parking Survey Results and Comparative Analysis (2015), Section III, Table 4 and survey approach.",
    "url": "https://ops.fhwa.dot.gov/freight/infrastructure/truck_parking/jasons_law/truckparkingsurvey/ch3.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s2",
    "description": "Federal Highway Administration. Truck Parking program page: survey-result links and geospatial metadata. The page labels the older private source as Trucker’s Friend 2013; see the conflicting report text in source 38.",
    "url": "https://ops.fhwa.dot.gov/freight/infrastructure/truck_parking/index.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s3",
    "description": "Federal Highway Administration. Jason’s Law Commercial Motor Vehicle Parking Survey and Comparative Assessment, December 1, 2020, HTML presentation. Relevant slides: 7, 8, 12, 14, 17, 22 and 25.",
    "url": "https://ops.fhwa.dot.gov/Freight/infrastructure/truck_parking/coalition/2020/mtg/mtg12012020_jasons_law.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s4",
    "description": "Federal Highway Administration. December 1, 2020 Jason’s Law results, original 32-page presentation PDF; relevant displayed figures checked against the page images.",
    "url": "https://ops.fhwa.dot.gov/Freight/infrastructure/truck_parking/coalition/2020/mtg/jasons_law_results.pdf",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s5",
    "description": "American Transportation Research Institute and AASHTO. State-Level Public Truck Parking Findings, published in April 2025. The page specifies 2024 DOT inputs, 2022 NHS/truck-VMT inputs and private counts from the 2015 Jason’s Law report. Publisher text verified through its indexed page.",
    "url": "https://truckingresearch.org/2025/04/truck-parking-index/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s6",
    "description": "American Transportation Research Institute. ATRI Research Focuses on Truck Parking at Public Rest Areas, April 8, 2025. Primary release for the joint ATRI/AASHTO research and reported rest-area averages.",
    "url": "https://truckingresearch.org/2025/04/atri-research-focuses-on-truck-parking-at-public-rest-areas/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s7",
    "description": "American Association of State Highway and Transportation Officials. ATRI, AASHTO Issue National Truck Parking Report, April 2025. Co-producer’s publication notice.",
    "url": "https://aashtojournal.transportation.org/atri-aashto-issue-national-truck-parking-report/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s8",
    "description": "American Transportation Research Institute. Truck Parking Case Study release, December 13, 2016. The release describes forgone remaining drive time and approximate annual mileage and earnings effects.",
    "url": "https://truckingresearch.org/2016/12/atri-truck-parking-case-study/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s9",
    "description": "American Transportation Research Institute. Official publication record for Managing Critical Truck Parking Case Study—Real World Insights from Truck Parking Diaries, December 2016.",
    "url": "https://truckingresearch.org/2016/12/5342/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s10",
    "description": "American Transportation Research Institute. Original December 2016 diary report, hosted access copy on Scribd. Sample description and Section 4.42 were read here. The original methods call 56 minutes a median; the conclusion uses average. This is an access copy of the producer’s report, not a report authored by Scribd.",
    "url": "https://www.scribd.com/document/607600277/ATRI-Truck-Parking-Case-Study-Insights-12-2016",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s11",
    "description": "American Transportation Research Institute. Truck Parking research directory. Used to distinguish the cited 2016 study from other parking research rather than asserting that no subsequent work exists.",
    "url": "https://truckingresearch.org/about-atri/atri-research/truck-parking/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s12",
    "description": "U.S. Bureau of Labor Statistics. Occupational Employment and Wage Statistics, May 2025, Table 1: employment and wage estimates for SOC 53-3032, 53-3033 and 53-3031.",
    "url": "https://www.bls.gov/news.release/ocwage.t01.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s13",
    "description": "U.S. Bureau of Labor Statistics. Occupational Outlook Handbook: Heavy and Tractor-Trailer Truck Drivers. 2025 employment figure in the edition checked for this page.",
    "url": "https://www.bls.gov/ooh/transportation-and-material-moving/heavy-and-tractor-trailer-truck-drivers.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s14",
    "description": "U.S. Bureau of Labor Statistics. OEWS Frequently Asked Questions: employment coverage, self-employment exclusion and employment-projections distinction.",
    "url": "https://www.bls.gov/oes/oes_ques.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s15",
    "description": "Federal Highway Administration. Highway Statistics 2022, Table HM-41, National Highway System Length. Total road-mileage column used for four state spot-checks.",
    "url": "https://www.fhwa.dot.gov/policyinformation/statistics/2022/hm41.cfm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s16",
    "description": "Federal Motor Carrier Safety Administration. Summary of Hours of Service Regulations, property-carrying drivers, including exceptions and qualifying rest provisions.",
    "url": "https://www.fmcsa.dot.gov/regulations/hours-service/summary-hours-service-regulations",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s17",
    "description": "Federal Motor Carrier Safety Administration. FMCSA Advances Hours-of-Service Pilot Programs for America’s Truck Drivers, August 27, 2026. Pre-test completion and planned 2027 full pilots.",
    "url": "https://www.fmcsa.dot.gov/newsroom/fmcsa-advances-hours-service-pilot-programs-americas-truck-drivers",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s18",
    "description": "Pennsylvania Department of Transportation. Statewide truck parking expansion announcement, October 6, 2025: 1,202 spaces at 133 locations planned by the end of 2026.",
    "url": "https://www.pa.gov/agencies/penndot/news-and-media/newsroom/statewide/2025/shapiro-admin-expands-statewide-truck-parking-options-for-first-",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s19",
    "description": "Pennsylvania Department of Transportation. Statewide truck parking delivery announcement, January 28, 2026: 339 spaces at 24 locations opened before the end of 2025. Includes separately described Turnpike initiatives.",
    "url": "https://www.pa.gov/agencies/penndot/news-and-media/newsroom/statewide/2026/shapiro-administration-delivers-over-300-new-truck-parking-space",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s20",
    "description": "Pennsylvania Department of Transportation. Planned Additional Truck Parking location list, PDF. Relevant four ramp counts verified; inconsistent text/page editions prevent a current-opening inference.",
    "url": "https://www.pa.gov/content/dam/copapwp-pagov/en/penndot/documents/travelinpa/safety/trafficsafetyanddrivertopics/documents/penndot-planned-additional-truck-parking.pdf",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s21",
    "description": "Pennsylvania Department of Transportation, District 5. Northampton County truck parking opening announcement, October 9, 2025: William Penn Highway park-and-ride. The release does not state a capacity.",
    "url": "https://www.pa.gov/agencies/penndot/news-and-media/newsroom/district-5/2025/shapiro-administration-opens-more-truck-parking-in-northampton-c0",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s22",
    "description": "U.S. Congress / Government Publishing Office. Public Law 119-75, Consolidated Appropriations Act, 2026, February 3, 2026. Division D, Title I, Highway Infrastructure Program parking appropriation and conditions.",
    "url": "https://www.govinfo.gov/content/pkg/PLAW-119publ75/html/PLAW-119publ75.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s23",
    "description": "U.S. Congress / Government Publishing Office. H.R. 1659, 119th Congress, Truck Parking Safety Improvement Act, introduced version. Section 5: $151 million in each of FY2025–FY2029.",
    "url": "https://www.govinfo.gov/content/pkg/BILLS-119hr1659ih/html/BILLS-119hr1659ih.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s24",
    "description": "U.S. Congress / Government Publishing Office. H.R. 8870, BUILD America 250 Act, introduced May 19, 2026. Truck parking authorization in the introduced text: $150 million in each of FY2027–FY2031.",
    "url": "https://www.govinfo.gov/content/pkg/BILLS-119hr8870ih/html/BILLS-119hr8870ih.htm",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s25",
    "description": "Congressional Research Service. Surface Transportation Reauthorization: Federal Highway Programs, R48845. Defines the IIJA federal highway authorization period as FY2022–FY2026.",
    "url": "https://www.congress.gov/crs-product/R48845",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s26",
    "description": "Lehigh Valley Planning Commission. Freight planning page: regional plan adopted December 18, 2024, and related planning materials.",
    "url": "https://lvpc.org/freight",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s27",
    "description": "Eastern Pennsylvania Freight Alliance. Plan and Strategies: regional truck operations and parking planning context.",
    "url": "https://epennfa.org/plan-and-strategies",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s28",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2016: truck parking fourth.",
    "url": "https://truckingresearch.org/2016/10/mandated-use-of-electronic-logging-devices-tops-the-list-of-concerns-in-annual-trucking-industry-survey/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s29",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2017: truck parking fourth.",
    "url": "https://truckingresearch.org/2017/10/driver-shortage-back-on-top-as-trucking-industrys-top-concern/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s30",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2018: truck parking fifth.",
    "url": "https://truckingresearch.org/2018/10/driver-shortage-once-again-ranked-as-trucking-industrys-top-concern-2/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s31",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2019: truck parking fifth.",
    "url": "https://truckingresearch.org/2019/10/driver-shortage-hours-of-service-rules-and-driver-compensation-top-the-list-of-industry-concerns/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s32",
    "description": "American Transportation Research Institute. ATRI Report Unveils Critical Issues in the Trucking Industry, ATRI-authored release republished by Food Logistics, November 13, 2020: truck parking third. Authorship is explicitly credited to ATRI.",
    "url": "https://www.foodlogistics.com/transportation/trucking/press-release/21202943/american-transportation-research-institute-atri-atri-report-unveils-critical-issues-in-the-trucking-industry",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s33",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2021: truck parking fifth.",
    "url": "https://truckingresearch.org/2021/10/trucking-workforce-issues-top-the-list-of-industry-concerns/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s34",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2022: truck parking third.",
    "url": "https://truckingresearch.org/2022/10/fuel-costs-top-the-list-of-trucking-industry-issues/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s35",
    "description": "American Transportation Research Institute. Annual industry issue findings, 2023: truck parking second.",
    "url": "https://truckingresearch.org/2023/10/the-economy-tops-the-list-of-trucking-industry-issues/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s36",
    "description": "American Transportation Research Institute. Top Industry Issues research directory: publication records for the annual series.",
    "url": "https://truckingresearch.org/about-atri/atri-research/top-industry-issues/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s37",
    "description": "American Transportation Research Institute. Annual industry issue findings, October 26, 2025: parking fourth overall, second among driver respondents, with a two-place drop from the 2024 overall position. More than 4,200 respondents in 2025.",
    "url": "https://truckingresearch.org/2025/10/for-the-third-year-in-a-row-the-economy-is-the-trucking-industrys-top-concern/",
    "verification_date": "2026-09-16"
  },
  {
    "source_id": "s38",
    "description": "Federal Highway Administration. Jason’s Law Truck Parking Survey Results and Comparative Analysis (2015), Chapter II, Parking Space Data. Explicitly names the 2015 Trucker’s Friend database, conflicting with the 2013 label on the program page.",
    "url": "https://ops.fhwa.dot.gov/freight/infrastructure/truck_parking/jasons_law/truckparkingsurvey/ch2.htm",
    "verification_date": "2026-09-16"
  }
]