This page defines delays in ANYWAYS, their structure, behaviour, and how they interact with the routing engine.

Delays are used to slow down traffic on specific stretches of road for a scenario, without editing the underlying network.

What are delays?

Delays are a set of drawn lines with slowdowns applied on top of a network at routing time.

Delays are defined per project and consist of:

• A parent network the delays are originally created on
• One or more lines drawn on the map
• A slowdown assigned to each line (either a maximum speed or a fixed extra delay)

Each line is:

• Drawn as a polyline on the map by the user
• Snapped to the network's road edges at routing time
• Assigned exactly one slowdown — a max speed OR a delay in seconds, not both

Delays do not:

• Alter the road network's tags or topology
• Persist to any exported network data
• Close, reroute, or restrict access on a road — they only affect how fast traffic can traverse the matched edges

Delays are attached per scenario. The same delays can be attached to one scenario as a "what-if" and left off another to keep it as a baseline. A delays can also be attached to a route planner network.

Delays behaviour

When a scenario (or route planner network) with delays attached is evaluated:

• Every line is matched to the road edges it overlaps at the current network commit