Roadcraft: Speed Limits

Adds functional road speed limits and automatically places matching restriction and cancellation signs. Roadcraft: Speed Limits works independently of the other Roadcraft mods.

Change notes — Version 1.3

This version identifies the release; the Mod Hub may display a different version number.

• Fixed a crash when whole-road selection reached station entrances or other construction-owned road geometry. Protected roads are excluded from selection and speed edits.
• Added automatic sign sizing based on the supporting road's speed limit, with 42, 60 and 75 cm diameters. Posts and mounting hardware adjust while preserving sign clearance.
• Existing managed signs refresh once when loading the update, preserving speed-limit ownership and metal variants.

How to use

1. Open Roads → Tools → Roadcraft: Speed Limits.
2. Choose a speed and set Mode to Add/adjust limit or Remove limit.
3. Click road segments to add them to the selection. Selected segments stay highlighted; click a selected segment again to deselect it.
4. Hold the road-selection modifier shown by the game to preview and select the connected road between junctions or road ends.
5. Choose Apply to update all selected segments. Removing a limit restores each segment's current road-template speeds. Allow the update to finish before starting another.
6. Enable Underground in the toolbar to select tunnel roads. Back clears pending selections; leave the tool when finished.

Controller operation has been tested with an Xbox controller on PC. Console support has not yet been tested. Follow the game’s controller prompts for your current device and bindings.

Speed limits and signs

Choose 10–150 km/h in 10 km/h steps. Every supported road can receive the 10 km/h minimum. Higher limits are capped at the road template's normal maximum plus 30 km/h, rounded down to a selectable step. The hover text shows the value that will actually be applied.

The game still applies lower speeds for tight curves and other road geometry. A posted 100 km/h limit therefore does not force vehicles to take a sharp bend at 100 km/h. Vehicle capabilities can also limit their speed.

Continuous stretches with the same limit share boundary signs, with reminders at joining roads. Multi-lane one-way roads receive signs on both sides. Road changes update signs in affected managed-road areas. Accidentally deleted automatic signs are replaced from their saved placement plans. Speed edits and sign placement happen separately; if sign synchronization fails, the speed limit can still be applied. Reapplying the limit retries sign synchronization.

Automatic signs are supported on roads, bridges and in tunnels. Signs follow the road or deck height and are removed when their supporting road segment is demolished. Use Underground to select tunnel roads.

Sign sizes and protected roads

Round signs automatically use 42 cm plates at road limits up to 20 km/h, 60 cm up to 80 km/h, and 75 cm above 80 km/h. Their posts and mounting hardware adjust while preserving the sign's ground clearance. Cancellation signs use the speed of their supporting road.

Station-owned roads and roads touching frozen construction nodes cannot be edited. Whole-road selection stops before these protected sections.

Savegame compatibility

Existing managed signs refresh once on loading this update. Allow the update to finish; saved speed-limit ownership and metal variants are preserved.

The mod can be added to existing saves and removed again. After disabling it, manually set speed limits remain, while sign models become default placeholders that can be deleted with the normal in-game delete tool. Use Remove limits/signs before disabling the mod if you also want to restore the normal road speeds.

Feedback requested

I would appreciate feedback in the comments about unexpected behaviour, crashes, sign placement and whether the mod can be operated on consoles using a controller. For problems, please describe the road layout, selected speed and what happened.

Earlier change notes

Version 1.2

This version identifies the release; the Mod Hub may display a different version number.

• Added automatic speed-limit and cancellation signs on bridges and in tunnels, with support cleanup after road demolition.
• Added multi-segment selection with an explicit Mode and Apply action.
• Added held whole-road selection between junctions or road ends.
• Improved opposing boundary-sign alignment and added restriction reminders on fully limited road loops.
• Updated sign metal variation, shadows and pole grounding while preserving sign-face height.
• Improved road-change reconciliation and guarded delayed controller callbacks after menu closure.

Version 1.1

This version identifies my release; the Mod Hub may display a different version number.

• Reduced background processing and fixed the periodic traffic-simulation stutter observed during testing. Sign updates now again only focus on affected managed-road areas.
• Improved sign reconstruction after roads are split, merged or deleted, including cancellation and introduction signs where a former junction becomes a sharp bend.
• Improved sign visuals with weathered metal, smoother edges, posts reaching the top of each plate, mounting fasteners and better reflections.

Version 1.0

Initial release. This version identifies my release; the Mod Hub may display a different version number.

• Functional per-segment speed settings and automatic restriction/cancellation signs.
• Controller toolbar access, native action hints and underground selection.
• Surface-road placement on slopes, signs on both sides of multi-lane one-way roads, and sign updates after road changes.
• Shared Roadcraft speed-sign models and a custom hover preview.