THE CHALLENGECommuters Wait Blind and Authorities Fly Blind
A commuter standing at a city bus stop has no idea when the next bus arrives, so they wait, give up, or switch to private transport. The transport authority has the opposite problem, plenty of buses on the road but no reliable data on whether they ran to schedule. On top of that, public service vehicles must carry AIS 140 location devices and feed the state Backend Control Centre. One system closes both gaps, live passenger information at the stop and adherence analytics for the operator, built on AIS 140 compliant hardware.
Sits inside the Telematics and GPS Tracking stack and shares hardware and platform building blocks with AIS 140 and NavIC Compliance.
WHAT'S INCLUDED
AIS 140 Hardware and Passenger Information Software
AIS 140 VLTD On the Bus
The vehicle location tracking device is built to the AIS 140 spec, with a NavIC and GPS receiver, dual SIM for network redundancy, internal battery, store-and-forward buffer that survives ignition-off and dead zones, and a hardware panic button. It pushes position and telemetry on the specified protocol to the backend and state BCC.
Passenger Information Displays
LED and LCD displays at stops, shelters, and terminals show the next buses approaching with a live ETA per route. The display controller pulls from the same ETA engine as the app, so what a rider sees on the screen matches what they see on their phone.
Rider App With Live ETA
The commuter app shows buses moving on the map, the next two or three arrivals at a chosen stop, and route maps. Riders pick a stop and get a countdown driven by current bus speed and recent segment travel times, not a fixed printed timetable.
Schedule Adherence Analytics
Each trip is compared against its timetable at every timepoint, with early, on-time, and late departures reported per route, shift, and depot, plus headway regularity on high-frequency corridors. The operator sees where the network drifts off schedule and why.
GTFS and GTFS-realtime Feeds
A static GTFS feed covers routes, stops, and schedules, and a GTFS-realtime feed covers live positions and trip updates. Journey planners and third-party apps consume your bus data in a standard format, and the authority keeps a clean open dataset.
Depot Geofences and Control Room
Depot geofences record actual pull-out and pull-in times and tie them to scheduled duties. The city control room dashboard shows every bus live, raises panic and breakdown events, and links each vehicle to its route and crew.
HOW IT WORKS
From the Bus to the Stop in Seconds
The VLTD reports position over MQTT to the ingestion layer, which map-matches each fix to the route shape, computes the remaining stops, and updates the ETA. That single ETA value fans out to the rider app, the displays at the stops, and the GTFS-realtime feed at the same time, so every channel stays consistent.
Position Ingestion
Buses stream NavIC and GPS fixes over MQTT. The store-and-forward buffer backfills any gaps from dead zones so the trip record stays complete even where the network drops.
Map Matching and ETA
Each fix is snapped to the route polyline, the remaining stops are worked out, and ETA is computed from live speed and recent per-segment travel times. The model adapts to traffic rather than reading a static timetable.
Multi-Channel Output
The same ETA drives the rider app, stop displays, and GTFS-realtime feed. Control room dashboards and adherence reports read from the same trip stream, so operations and riders see one truth.
STANDARDS AND COMPLIANCE
Built to AIS 140 and Transit Data Standards
AIS 140 and NavIC
The VLTD meets AIS 140 for public service vehicles, with NavIC and GPS positioning, dual SIM, internal battery, store-and-forward, and a hardware panic button. Designed to the ARAI and ICAT test plan so the device passes type approval.
State BCC Integration
The device-to-BCC protocol is implemented, devices are provisioned and registered, and vehicle and emergency data is forwarded to the correct state Backend Control Centre in the format each state expects.
GTFS and GTFS-realtime
Standard static and realtime transit feeds let journey planners, signage, and third-party apps consume your network data without a custom integration each time.
FAQ
Common Questions
How do commuters see live bus arrival times at the stop?
Each bus runs an AIS 140 VLTD that pushes position and speed to the backend every few seconds. That position is map-matched against the route shape and remaining stops, then a live ETA is computed using current speed and recent travel times on each segment. That ETA reaches commuters two ways, on LED or LCD passenger information displays mounted at the stop or terminal, and in the rider app where they can see the next two or three buses approaching a chosen stop.
Does the system meet AIS 140 requirements for public service vehicles?
Yes. The on-board device is built to the AIS 140 VLTD specification, with NavIC alongside GPS, dual SIM for network redundancy, an internal battery and store-and-forward buffer so logging survives ignition-off and dead zones, and a hardware emergency panic button. The backend registers and forwards data to the relevant state Backend Control Centre in the format it expects.
What is GTFS and why does it matter for city bus tracking?
GTFS is the General Transit Feed Specification, the common format that route, stop, and schedule data is published in. The platform generates a static GTFS feed for your network and a GTFS-realtime feed for live vehicle positions and trip updates. That lets third-party apps and journey planners consume your bus data directly, and it gives the transport authority a clean, standard dataset rather than a closed silo.
How do you measure schedule adherence?
Each trip is compared against its scheduled timetable at every timepoint along the route. The analytics show early, on-time, and late departures per route, per shift, and per depot, plus headway regularity on high-frequency corridors. Depot geofences detect actual pull-out and pull-in times so the authority can see whether a bus left and returned on schedule, beyond what happened mid-route.
What does the panic button connect to?
The hardware panic button on the VLTD raises a high-priority emergency event. It routes both to your depot or city control room dashboard with the bus location and route, and to the state emergency response path where required. The device-side handling debounces the press and confirms intent so accidental contact does not flood the control room with false alarms.
Can this integrate with your existing depot and scheduling systems?
Yes. REST APIs and the GTFS feeds let the platform connect to your scheduling, duty roster, and depot management systems. Depot geofences tie vehicle movement to specific yards, and crews and duties can be mapped onto trips so adherence and utilisation reporting reflects how your operation actually runs.
Ready to Put Your Buses on the Map?
Share your fleet size, routes, and AIS 140 obligations to get a tailored approach across the hardware, the passenger information layer, and the adherence analytics, with a realistic timeline to go live.
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