I cannot figure out the ramp design and left exit arrangement of this viaduct skyway. the ramps cross over themselves to the left-handed driver direction prior to coming to intersecting roads, and these ramps cross over each other which seems like an engineering nightmare. In order to allow for these ramps the viaducts would have to be extremely high to allow for two levels of crossing ramps and then a boulevard beneath that. I am also wondering what the purpose of the tandem boulevard along this corridor. Was this designed this way just because it looks cool or because it has some actual functionality. — http://opengeofiction.net/#map=17/18.77812/88.97672
When it comes to freeways/motorways. left exits should be avioded at all times. only in rare situations would a left exit be an option. Additionally the Spaghetti Maze ( http://opengeofiction.net/#map=17/18.81450/88.97951 ) interchange at A-1 and A-9 has been modified to have a ramp for free flow on to every side street rather than terminating some ramps to a traffic signal as the interchange was originally designed. all of these ramps could in practice cause driver confusion and also creates an engineering nightmare for civil engineers. Again it seems like a bit of creative overkill if you ask me.
Thirdly there are a TON of very closely spaced freeways here as well. some spaced less than one mile from each other. Again just wondering about the need for that many closely spaced freeways.
