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Permanent Traffic Count Site Location Maps

PennDOT maintains permanent traffic counting devices strategically located throughout the state. These sites collect data on a continuous basis throughout the year. This data is used to develop daily and seasonal factors, as well as to identify changes in traffic patterns. All of the data is reported to the Federal Highway Administration.

  • Weigh-in-Motion (WIM) — sites that collect continuous truck weight and vehicle classification data (24/7)
  • Continuous Automatic Vehicle Classification (CAVC) — sites that collect continuous vehicle classification data (24/7)
  • Automatic Traffic Recorder (ATR) — sites that collect traffic volume data (24/7)
  • Short-Term In-Pavement (STIP) — inductive loop sites, considered semi-permanent traffic data collection devices (not 24/7)


District Maps

The following district links open detailed maps in PDF format, including latitude and longitude coordinates.

select district 1 Crawford Erie Forest Mercer Venango Warren counties select district 2 cameron Centre Clearfield Clinton Elk Juniata McKean Mifflin Potter counties select district 3 Bradford Columbia Lycoming Montour Northumberland Snyder Sullivan Tioga Union counties select district 4 Lackawanna Luzerne Pike Susquehanna Wayne Wyoming counties select district 5 monroe northampton carbon lehigh schuylkill berks counties select district 6 bucks montgomery philadelphia delaware chester counties select district 8 dauphin lebanon lancaster york cumberland perry franklin adams counties select district 9 cambria blair huntingdon fulton bedford somerset counties select district 10 jefferson clarion butler armstrong indiana counties no link select district 11 lawrence beaver allegheny counties select district 12 westmoreland washington greene fayette counties

District 1, District 2, District 3, District 4, District 5, District 6, District 8, District 9, District 10, District 11, District 12


County Maps

The following county links open detailed maps in PDF format, including latitude and longitude coordinates.

snyder county erie county crawford county mercer county beaver county washington county greene county fayette county westmoreland county allegheny county butler county indiana county armstrong county clarion county venango county forest county warren county mckean county elk county jefferson county clearfield county cambria county somerset county bedford county fulton county blair county franklin county huntingdon county centre county clinton county cameron county potter county tioga county union county mifflin county juniata county perry county cumberland county adams county york county dauphin county lancaster county chester county delaware county lebanon county montgomery county berks county bucks county lehigh county northampton county luzerne county wyoming county wayne county bradford county susquehanna county lawrence county lycoming county sullivan county montour county philadelphia county lackawanna county wayne county pike county carbon county schuylkill county no link northumberland county columbia county monroe county

For questions, please email