Case Study: Construction Firm Reduces Site Accidents by 40% with GeoKontrol Speed Zones
Case Study: Construction Firm Reduces Site Accidents by 40% with GeoKontrol Speed Zones
Illustrative case study representing typical results for construction and civil engineering contractors deploying AutoKontrol TrackSpeed and GeoKontrol speed zone technology.
Overview
| Detail | Information |
|---|---|
| Sector | Tier 2 construction and civil engineering |
| Fleet size | 60 site vehicles (HGVs, 4x4s, vans, plant support) |
| Active sites | 8 simultaneously |
| Deployment period | 4 months |
| Site accident reduction | 40% year-on-year |
| Near-misses in 12 months post-deployment | 0 |
| FORS accreditation achieved | Gold (first application) |
A Tier 2 construction contractor operating across eight active sites had experienced a deeply concerning 12-month period. Three speed-related near-misses involving vehicles and site workers had occurred across different sites, and the company’s principal contractor relationships were under strain. One principal contractor had formally written to the contractor’s Operations Director warning that site access could be withdrawn unless demonstrable improvements in speed management were made.
The contractor engaged AutoKontrol to deploy TrackSpeed with GeoKontrol across all 60 site vehicles, creating customised speed zones for each active site that automatically adjusted vehicle speed limits as vehicles entered and departed controlled areas.
Within 12 months of full deployment, speed-related incidents had fallen by 40%. There had been zero near-misses. The company achieved FORS Gold on its first application and subsequently cited its speed management capability in two successful contract bids.
The Challenge
Three Near-Misses in Six Months
The incidents that triggered the programme were serious. In each case, a vehicle moving between work areas on site had passed through a zone where pedestrian workers were operating, travelling at speeds inconsistent with site traffic management plans. No workers were injured, but the potential for catastrophic outcomes was clear to everyone involved.
The contractor’s Health and Safety Director conducted a root cause analysis after the third incident. The findings were uncomfortable:
- Speed limits were not enforced physically — signage and Traffic Management Plans existed, but drivers were not reliably complying
- Different sites had different cultures — some site managers enforced limits consistently, others did not
- Vehicles leaving and returning to sites moved between environments with very different speed expectations (public road at 56 mph, site road at 10 mph) and drivers were not always making that transition promptly
- No real-time visibility — management could not monitor compliance in real time and only became aware of issues after incidents or observations
Principal Contractor Pressure
The formal letter from the principal contractor on the contractor’s largest active project was unambiguous: without a credible speed management solution deployed within 90 days, site access would be reviewed. Given that this project represented 35% of the contractor’s revenue, the business risk was existential.
FORS Aspirations
Separately, the contractor was pursuing FORS Gold accreditation to support bids for TfL-connected projects in London. The FORS Gold standard requires demonstrable active speed management — not just a policy, but evidence of enforcement. Existing arrangements did not meet this bar.
The Solution
TrackSpeed with GeoKontrol
AutoKontrol recommended TrackSpeed with GeoKontrol — the GPS zone-based speed control system that automatically applies different speed limits as a vehicle enters defined geographic zones.
For a construction contractor with vehicles moving between public roads and controlled sites, GeoKontrol solves a problem that a single fixed speed limiter cannot: the vehicle needs to comply with 56 mph on the motorway, 30 mph on local roads, and 10 mph on site — and the transition needs to happen automatically, without relying on the driver to remember.
Site Zone Configuration
Each of the eight active sites was mapped by AutoKontrol’s technical team working with the contractor’s Traffic Management planners. For each site:
- Outer perimeter zone (15 mph limit): activated when the vehicle passes the site gate GPS boundary
- Inner working area zones (5–10 mph limits): activated within specific high-pedestrian areas
- Public road profile: standard 56 mph HGV limit applied when the vehicle is outside all site zones
- Alert zone: a buffer area around the site perimeter where the system pre-warns the driver of the upcoming speed restriction
When a site plan changed — as they do on live construction projects — the zone configuration was updated remotely through the TrackSpeed platform, without any requirement to physically access the vehicle.
Fleet Manager Dashboard
The contractor’s Transport Manager and Health and Safety Director both received access to the TrackSpeed/ScorpionTrack Fleet dashboard. Live speed monitoring across all 60 vehicles was available on a single screen, with exception alerts configured to notify the relevant site manager immediately if a vehicle was detected operating above its zone limit.
This moved the contractor from a position of finding out about speed issues after the fact to being able to respond in real time.
Driver Communication
The contractor’s H&S Director led a series of toolbox talks at each site explaining the GeoKontrol system. Drivers were shown how the zone transitions worked and what the in-cab notifications meant. The emphasis was on the system supporting safe driving, not surveilling individuals — a framing that was well received.
Results
Safety Outcomes (12 Months Post Full Deployment)
| Metric | 12 Months Pre-Deployment | 12 Months Post-Deployment | Change |
|---|---|---|---|
| Speed-related near-misses | 3 | 0 | -100% |
| Speed-related incidents (all severity) | 15 | 9 | -40% |
| Site access prohibition notices | 2 | 0 | -100% |
| Vehicle-related safety observations raised by principal contractors | 11 | 2 | -81.8% |
| Speed zone compliance rate (site zones) | N/A — not monitored | 97.3% | Established baseline |
Regulatory and Accreditation Outcomes
FORS Gold: Achieved on first application, 11 months post-deployment. The FORS assessor specifically commended the GeoKontrol zone configuration as evidence of active rather than passive speed management. The contractor’s documented compliance rates and incident history provided the objective evidence base required.
Principal Contractor Relationship: The principal contractor who had issued the formal warning conducted a site safety audit six months after TrackSpeed deployment. Their audit report graded the contractor’s speed management as “exemplary” — a complete reversal from the position 12 months earlier.
Commercial Outcomes
Following FORS Gold accreditation and the demonstrable safety record, the contractor was invited to tender for two contracts that explicitly required FORS Gold. Both were awarded. The combined contract value of the two new wins was £4.2M — significantly exceeding the total cost of the AutoKontrol deployment.
In both tender submissions, the contractor referenced its GeoKontrol speed management capability and provided TrackSpeed compliance data as supporting evidence. Feedback from one client indicated that the speed management demonstration was a differentiating factor in the award decision.
ROI Summary
| Item | Cost/Saving |
|---|---|
| TrackSpeed + GeoKontrol deployment (60 vehicles) | £48,000 (hardware + installation) |
| Annual TrackSpeed subscription (60 vehicles) | £14,400 |
| FORS Gold assessment and accreditation | £3,200 |
| Total year one investment | £65,600 |
| Insurance premium reduction (year one) | £18,500 |
| Avoided incident costs (estimated, 6 fewer incidents) | £42,000 |
| New contract revenue directly attributable | £4,200,000 |
| Net return, year one | £4,194,900 |
Key Takeaways
- GeoKontrol’s zone-based speed control solves the multi-environment challenge that a single fixed speed limiter cannot address
- Automatic zone transitions remove reliance on driver behaviour at the moment of highest risk (site entry)
- Real-time visibility enables proactive management — the system changes the compliance culture, not just the vehicles
- FORS Gold is achievable with GeoKontrol as the evidential backbone of the speed management programme
- Safety improvements translate directly to commercial advantage in contract procurement
Protecting Your Site Workers — and Your Contracts
AutoKontrol’s GeoKontrol technology is designed specifically for operators who need different speed profiles in different environments. If your fleet moves between public roads and controlled sites — construction, quarrying, ports, logistics parks, or similar — GeoKontrol can provide automatic, enforceable speed management across every zone.
Read more about speed limiter benefits for safety and compliance and how to calculate your fleet’s speed limiter ROI.
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