PMT Automatic 
Passenger Counting System

Ridership and Schedule Adherence Data	=	Improved Service and Operational Efficiency

The PMT Automatic Passenger Counting (APC) System is your solution for the collection of accurate passenger data, providing crucial feedback for transit planners.

System Features

• Real-time Passenger Counting with On-board Data Storage 
• Battery Backed-Up RAM for Data Storage of 1 Week or More 
• Serial Interface for Direct or Infrared Communications 
• Data Stored in Record Format for Auto or Manual Data Offload 
• Proven Treadle Switch Technology for Data Input 
• Count Accuracy of 95% or better 
• Treadle Switch inputs for up to 4 doors, 2 passenger streams per door 
• Vehicle location through serial interface to GPS receiver, RF signpost receiver, or optical signpost receiver
• Expansion Capability for high speed communications, IBIS, SAE J1708, etc. 
• Maintains realtime clock with 2 second resolution 
• PCU maintains odometer count with 1 m resolution 
• Stores passenger information for each stop in Stop Record format as follows: 
• Passenger ON and OFF count for each door 
• Stop Arrival and Departure time 
• Stop Dwell time 
• Odometer count
• Stores other vehicle records as follows: 
• Entry & Exit times, with odometer count, for each

uniquely numbered signpost transmitter (SPT) 
• Engine on & off times, with odometer count 
• System shutdown & restart times 
• Date rollover 
• Error & diagnostic events 
• Records are stored in battery backed-up CMOS RAM 
• approximately 1 week of passenger counting data (up to 1 month optional) 
• Many programmable features, such as: 
• Vehicle & system ID numbers 
• Time delays to adapt system to different boarding and disembarking patterns. 
• Mapping for different bus door sizes and counting functions. 
• Power shutdown delay 
• Programmable features stored in non-volatile memory (EEPROM) 
• Customized odometer interface to accept different signal levels 
• Environmentally-sealed connectors 
• Rugged packaging, with stainless steel hardware used throughout 
• Customized installation kits, featuring anodized aluminum or stainless steel mounting brackets 
• Custom-engineered Treadle Switches