In Salem, Oregon, I have encountered a ramp that I can't quite seem to make a restriction that JOSM thinks is valid, so I'm wondering what the expected way to handle such a situation is. The area in question is visible at http://www.openstreetmap.org/?lat=44.929397&lon=-123.024784&zoom=18&layers=B000FTF
Coming from the flyover ramp to Mission Street eastbound, as well as from the Mission Street bike lane ramp where that lane rejoins the road, drivers and cyclists alike are faced with a No Lane Change line that prevents a legal movement to the left turn lanes onto 17th Street. Effectively, this means that you may or may not be able to turn left at 17th depending on how you entered from the next intersections west. You can see the pavement markings as they are on the ground at http://maps.google.com/?ie=UTF8&ll=44.92934,-123.02527&spn=0.000872,0.002414&t=k&z=19 For those who aren't familiar with why this is a hard question: 1) JOSM doesn't seem to want to have more than one "via" or have a way as a "via" in a restriction relation; I'm not sure if this is right or wrong for JOSM to expect. What's the live use on this? 2) Solid white lane lines mean you can't change lanes in this area (exception being bicycles are allowed to enter or leave their restricted lane over the solid line adjacent to the bicycle restricted lane). 3) Only one lane change is allowed per vehicle per 1000 feet. Lane changes are unrestricted between all lanes for 60 feet between the two intersections, and traffic moves at expressway speeds (40-50MPH). So how does one handle such awkward turn restrictions (other than slaughtering the civil engineer who came up with such a bogus interchange to begin with)?
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