Hi. Sry for wait time, i have work ...

 What?
The emergency vehicles do not use/need any map, they can drive according to the situation, even in opposite ways.

"You are not mapping for logic, but for look. "  thay is wrong, I have mapped that for logic. You can fix the map or you can fix all the navigators/routers out there to support lanes navigation ... 

"may give you wrong instructions" - wrong instruction would be to exit at the ramp point(s there are 2). You should start exiting sooner before it still possible.

Also the lane mapping example on wiki (Motorway_with_lanes_and_destinations) has a problem for higway exit - the junction is mappet at the split point and also  shall be mapped before the last possible exit point which is before the full line. Consequently this cannot be used on higway exit.
Example: https://www.openstreetmap.org/node/2836078
The junction is placed before the full line. With your logic it would be misplaced on https://www.openstreetmap.org/node/2977985210 (150m too late, that's about 5 seconds)

