With OSRM v5.4.0 we continued our focus on Guidance and improved lane support which was introduced in v5.3.
Some additional highlights:
- Better classification for Roundabout Turns and roundabouts in general
- Improved sliproad detection
- Improved turn penalty function fit to real data
- Support for Lane Access Tags
- Designated HOV Lanes
- Improved Lane Anticipation for subsequent quick lane changes
- Name change detection heuristic reducing the number of instructions
- Eliding instructions for quick turns in Staggered Intersections
- More aggressive instruction collapsing
- Limiting merge instructions to Motorways