Network performance
Where the network costs money
Is the strategic road network performing, what is it costing, and where should we spend? Filter by corridor or city to see any part of it on its own.
Demand against reliability
Vehicles observed each month against the Journey Time Index. Network-wide; the corridor and city filters apply to the site-level panels below.
Demand rises while reliability falls. Two lines diverging is the whole executive
argument: capacity is being consumed faster than it is being managed.
Cost by corridor
Click any column heading to sort.
| Corridor | Sites | JTI | £m / year | Carbon share |
|---|
Sites by cost and risk
Each bubble is one of 74 sensor sites, positioned by longitude and latitude and sized by annual economic cost. Upper right of the second chart is both expensive and dangerous.