Bus Stop | Passenger Counting
People counting at bus stops with SensMax TAC-B 4G radar sensor
Bus stops are key points in public transport where passengers enter and exit buses. Knowing how many people use each stop helps transport companies and municipalities plan routes, improve schedules and manage resources better. The SensMax TAC-B 4G radar together with the SPS20 solar power system provides accurate and real-time people counting at bus stops. This solution delivers statistics that support smarter transportation planning and improve service efficiency.
TAC-B radar with SPS20 solar power kit installed at a bus stop
Why count people at bus stops
Counting passengers at bus stops gives transport operators and city planners valuable insights. The statistics show which stops are the busiest, help to optimize routes and schedules, and ensure that enough capacity is available where it is needed. They also support infrastructure planning, for example deciding where to add shelters, seating or digital displays, and provide data for a more balanced distribution of transport resources across the city.
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Passenger counting at bus stops helps to optimize routes and manage resources
Key benefits
- Accurate data. Up to 99% accuracy using 60 GHz mmWave radar, independent of light and shadows.
- Wide coverage. Up to 100 m² with 120° angle, suitable for busy bus stops.
- Bi-directional counting. Detects passengers boarding and leaving in both directions.
- Real-time reporting. 4G connection delivers live statistics to the server or dashboard.
- Privacy compliant. Radar counts movement only, no video or personal data collected.
- Easy integration. Data export via MQTT or API to transport management systems.
- Off-grid ready. SPS20 solar kit with LiFePO4 battery powers the sensor for up to 85 hours without sunlight.
- Weatherproof. Works in rain, fog, snow, bright sun and complete darkness with IP67 protection.
Performance and accuracy
Tests show accuracy up to 99% in normal density and about 93% in crowded conditions. The radar detects pedestrians and passengers with bicycles or scooters equally well. Best results are achieved when the sensor is installed 2.5–3 meters above ground with a clear view of the stop area.
Integration and analytics
All data is available in the SensMax cloud dashboard with hourly, daily and monthly reports. For advanced use, raw data can be exported via MQTT or API and connected to AWS IoT, Azure IoT Hub or other transport planning platforms.
Installation
The TAC-B radar is installed on poles or bus stop structures at a height of 2.5–3 meters. The SPS20 solar kit is pre-wired, so installation requires only fixing the units and turning the solar panel to the sun. Configuration is done from a mobile phone during setup. With IP67 housing and -20°C to +65°C operating range, the system works in all weather and runs automatically after installation with no regular maintenance.
FAQ – common questions
- How long does it work without sun? Up to 85 hours on LiFePO4 battery backup from the SPS20 solar kit.
- Does it work in bad weather? Yes, in rain, fog, snow, bright sun and complete darkness.
- Does it need maintenance? No regular maintenance required. Only initial setup with a mobile phone.
- Can the data be integrated? Yes, via MQTT or API with transport management and city systems.
- What is the best installation height? Between 2.5 and 3 meters with a clear view of the stop.
Technical specifications
| Detection area | Up to 100 m², 120° field of view |
| Counting accuracy | Up to 99% (normal density), 93% (crowded) |
| Mounting height | 2.5–3.0 meters |
| Connectivity | 4G/LTE, MQTT export, API integration |
| Power supply | SPS20 solar kit with LiFePO4 battery, up to 85 hours backup |
| Operating conditions | Rain, fog, snow, bright sun, complete darkness |
| Detected objects | Pedestrians, cyclists, scooters |
Download PDF documents
| SensMax TAC-B 4G sensor booklet | Download |
| SensMax SPS20 solar power booklet | Download |
| SensMax product catalog | Download |
