Case Study: How Crystal Alarm Enhanced Staff Safety for Arriva Sweden's Light-Rail Operations

The Challenge: Maintaining Staff Safety After Conductor Removal

When Arriva removed conductors from Stockholm’s light-rail services and the Nockebybanan tram line, the need for a reliable safety solution for onboard staff grew significantly. The sense of security once provided by the presence of conductors now had to be replaced by a technical solution that both employees and management could fully rely on.

Previously, conductors provided both a visible security presence and immediate support for onboard staff. Their removal meant that lone workers now needed a reliable, technology-driven safety solution that could deliver:

• Real-time visibility for the traffic control centre
• Immediate alert capabilities for staff in emergency situations
• A system that both employees and management could trust completely
• Quick response coordination when assistance was required

The solution needed to be both sophisticated in functionality and simple in operation, ensuring that staff could focus on their primary responsibilities while having instant access to help when needed.

The Solution: Crystal Alarm Personal Safety System

Arriva selected Crystal Alarm to provide comprehensive personal safety coverage for all tram staff across their Stockholm operations. The implementation combined intuitive user experience with robust safety features:

Mobile Alarm Activation

Staff members can trigger alarms directly from their Android work phones using a simple, deliberate action, pressing the power button multiple times. This design ensures easy activation during genuine emergencies whilst minimising accidental alerts.

Crystal Button Bluetooth Remote

A discreet wearable Bluetooth device enables staff to activate alarms without accessing their phones. This hands-free option provides an additional layer of security and reduces the risk of false alarms during routine operations.

Centralised Alarm Management

All emergency alerts are routed directly to Arriva's traffic control centre in Ulvsunda, where operators receive immediate notification including:

• Staff member identity
• Precise location data via GPS
• Continuous position updates if the individual is moving

Real-Time Audio Monitoring

When an alarm activates, the system automatically enables the phone's microphone, allowing traffic control operators to hear ambient audio. This critical feature enables rapid situation assessment and appropriate response coordination without requiring the staff member to communicate verbally.

Test and Evaluation Capabilities

The system includes comprehensive tools for conducting routine test alarms and evaluating response procedures, ensuring that safety protocols remain effective and staff members stay familiar with the system.

The Results: Enhanced Safety and Operational Confidence

Since implementing Crystal Alarm, Arriva has achieved significant improvements in workplace safety and operational efficiency:

Improved Daily Safety Operations

The system provides consistent, reliable protection for lone workers across all light-rail services, creating measurable improvements in staff confidence and security.

User-Friendly Technology Adoption

Staff members have embraced the system due to its intuitive design and multiple activation methods, ensuring high engagement and proper utilisation during actual emergencies.

Reliable Performance

The solution has demonstrated excellent reliability in both routine testing and real-world scenarios, with consistent functionality across Arriva's entire fleet.

Streamlined Safety Management

Traffic control operators benefit from clear, actionable information during emergencies, enabling faster decision-making and more effective response coordination.

Client Testimonial