Roadworks lane closure schedule calculator

Calculate conflict intervals [start,end,closed lanes] JSON and total phase lane-hours closed with your own figures.

Your numbers

Use the units shown. Results update as you change valid inputs.

Use conflict intervals [start,end,closed lanes] JSON and total phase lane-hours closed to compare changes to your inputs. The method and limits below explain the scope.

Examples

Examples

Try the starting example

Lane closure phases [start hour,end hour,lanes closed]
[[8,10,1],[9,12,1],[14,16,2]]
Total available lanes (count)
3
User-required open lanes (count)
1
Conflict intervals [start,end,closed lanes] JSON
[]
Total phase lane-hours closed
9

Try another scenario

Lane closure phases [start hour,end hour,lanes closed]
[[9,10,1],[9,12,1],[14,16,2]]
Total available lanes (count)
3
User-required open lanes (count)
1
Conflict intervals [start,end,closed lanes] JSON
[]
Total phase lane-hours closed
8
Calculation method

Calculation method

Conflict intervals [start,end,closed lanes] JSON

Sweep half-open closure intervals; flag segments where total closed lanes exceeds allowed capacity. No traffic-control approval.

Total phase lane-hours closed

Sweep half-open closure intervals; flag segments where total closed lanes exceeds allowed capacity. No traffic-control approval.

Symbols and units
a
Lane closure phases [start hour,end hour,lanes closed]
b
Total available lanes (count)
c
User-required open lanes (count)

Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.

Assumptions & limits

Assumptions & limits

  • User-supplied measurements and assumptions; Sweep half-open closure intervals; flag segments where total closed lanes exceeds allowed capacity. No traffic-control approval. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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