I would recommend providing guidance that airport taxiways should not be mapped. In many larger airports the taxiways can be quite complex, would appear the same size/color as runways, and would reduce the distinctive appearance of the runways being identified as runways.
A new editor has just added a pile of taxiways to SFO.
I started to PM him, but realized that, despite pumrum's suggestion that opened this thread, the road-type wiki remains silent on taxiways.
sketch wrote:Our guidance says restricted roads inside the airport should not be mapped.
The guidance sketch refers to (I'm not sure where it's located) does not quite apply since these aren't exactly "restricted roads" but full-fledged taxiways. For when pilots need Waze to avoid traffic on the tarmac I suppose. Who needs ATC?
Nobody has objected to pumrum's suggestion above. Even a Waze editor who was enthusiastic about mapping airports
couldn't support taxiways that are purely for use by aircraft (emphasis mine):
jdwaters wrote:Having the taxiways mapped is of slight navigational benefit for airport users. At general aviation airports it is somewhat common for street vehicles to drive on taxiways to reach hangars and aviation businesses (e.g. Saratoga Springs, where the parking lot for the two glider hangars is reachable only by driving on taxiways). Having the taxiways depicted on the map is helpful, but they certainly should not be connected to the road network so as to avoid directing unauthorized traffic onto taxiways. I don't think there is much navigational benefit while operating an aircraft; if you're at an airport large enough that you need a map of the taxiways, you should have a formal airport chart available.
So, I recommend we modify the Road types (USA) wiki
as follows, addition in italics
updated wiki suggestion wrote:Where a street also serves as a taxiway (such as in a community with through-the-fence access) map the street as a street. No drivable road should connect to or cross over any runway. A road may cross under a runway by ensuring the elevation is set below that of the runway segment. Despite its title, the Runway/Taxiway road type should never be used for airport taxiways. Taxiways not intended for common access by street vehicles should not be mapped at all with any road type.