DataDriven Roads

Speed programs

Speed safety corridors

A high-injury network is a small share of the street grid carrying a large share of the serious crashes. Enforcement on those corridors is a targeting decision before it is a technology decision.

Request a demoProcurement information
Data-led sitingSites chosen from crash history and measured speed, and the reasoning is publishable.
Equity analysisDistribution of sites and citations reviewed and reported, not left implicit.
Before and afterThe same measurement method used to justify the site is used to evaluate it.

Site selection

The hardest question is not where speeding happens. It is where to put the camera

Speeding is everywhere. Serious injury is not. Siting has to follow crash concentration and measured speed, and the reasoning has to survive being read aloud at a public meeting by someone who opposes the program.

  • Crash history, measured speed and vulnerable road user exposure.
  • Site list and rationale prepared for publication.
  • Distribution reviewed before the program starts, not after a complaint.

High-injury network

The corridor set where serious outcomes concentrate.

Measured speed

Field measurement, not modelled estimates or complaint volume.

Exposure

Pedestrian and cyclist volumes on the same corridor.

Public record

Why each site was chosen, written down before installation.

Program arc

A corridor program is a measurement exercise with enforcement inside it

If the only number a program can report is citations issued, it cannot defend itself. The point is speed reduction, and speed reduction has to be measured the same way before and after.

  1. BaselineSpeed distribution measured before anything is installed
  2. SitingProgram design: sites selected and the rationale documented
  3. NoticePublic information and the warning period
  4. OperationEnforcement with full human review
  5. EvaluationSame measurement repeated and reported
Fixed sitesContinuous coverage where the corridor justifies permanent infrastructure.
Rotating unitsCoverage across a set of corridors on a published schedule.
Program reportingSpeed distribution, not just citation counts.

Legal framework

What is authorized is not the same in every state

Authority, thresholds, signage and retention are set by the statute of each state and, in several states, of each program. What appears here is a description of how we operate, not legal advice.

See the California picture

Before anything else

We confirm what your jurisdiction is authorized to operate today.

Written into the program

Thresholds, signage, warning periods and retention are configured, not assumed.

Your counsel decides

We bring the operational picture. The legal call belongs to your attorney.

Bring us a corridor

We will measure it first and tell you whether a program is the right answer.

Talk to our team