[OSM-newbies] Splitting streets into one ways--too much?

[Mike N.]

> There are a number of residential streets in my locale that are separated 
> by a median.  Traditionally, I've converted such streets into two one way 
> lanes.  Of course this is particularly useful in areas like interstates or 
> large highways, but I'm wondering if I'm taking it too far by doing it to 
> the residential streets in my area?  At what point is an effort for 
> absolute accuracy go to far?

  Separating residential streets which are separated by a median into 2 
one-way lanes is correct because it allows routers to model the physical 
world.   In other words, they won't give instructions to "turn left now" 
across a median.  You have to remember to add actual turning lanes where 
they exist to tell routers where a turn is allowed.