Speed and level of service, to regulate and to prioritise.
Spot speed and travel time studies for regulation, safety programmes and the identification of bottlenecks.
When to engage
Speed limit under review
Regulation requires the speed actually practised (spot speed), measured with method and by period.
Bottleneck or level of service
Travel times and delays show where the road loses performance and what should be prioritised.
Road safety programme
Operating speed is a direct input to the diagnosis and correlates with the road safety assessment.
Sub-services — Speed & Travel Time
Spot speed and delay
Spot speed study for compliance with limits and speed regulation.
Travel time (floating car)
Actual travel time measured by the floating car method.
How we deliver
Definition of sections and survey periods
Measurement points and windows according to the aim: regulation, safety or performance.
Field measurement
Spot speed per point and runs with a floating car.
Consistency
Validation of the measurements and closure by section, direction and period.
Profiles and report
Speed percentiles (including the 85th), travel times and delays by section.
What you receive
- Speed profiles by point, with percentiles (including the 85th)
- Travel times and delays by section and direction
- Diagnosis of bottlenecks for prioritising interventions
- Database and report for regulation
Technical specifications
| Methods | Spot speed · floating car method |
|---|---|
| Measures | Speed percentiles (85th) · travel time · delay |
| Applications | Speed limit regulation · level of service · road safety programmes |
Frequently asked questions
It is the measurement of the speed practised at a point, the basis for speed regulation and for a safety diagnosis.
By the floating car method, driving the section to measure times and delays.
The data supports the regulation of limits and the identification of bottlenecks for prioritising interventions.
It is the 85th percentile of the speeds practised — the usual reference for supporting the regulation of speed limits.
Are you regulating speed or measuring level of service?
Speed and travel time studies with method. Talk to a specialist.