[mkgmap-dev] "Turn/Exit Left" instruction given too early

Sun Aug 30 23:52:00 BST 2009

I'm in the UK, so it's "Left" for me but for many of you the same 
problem would be with "Turn/Exit Right".

Basically, I drive a few roundabouts around here where the "Exit Left" 
instruction is given so early that I've not actually cleared the 
previous exit yet! The moving-map shows what was intended, but it would 
have been confusing to someone relying on the spoken instructions.

I was wondering: has anyone noticed if the distance between an 
"Exit/Turn Left" spoken instruction and the exit/turn that it refers-to 
is linked to the road class or road speed of the way? If so, maybe we 
want to examine ways to downgrade the speed that the router assumes you 
can drive a roundabout.

I see quite a few problems around my way, mostly with motorway junction 
roundabouts.

If it isn't the road class or road speed, could it be linked to the 
curvature of the road (unlikely, surely)?

Steve