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Road Types (USA)

Post by orbitc
We are undergoing a major overhaul of Road Types in USA. Please read dedicated forum and wiki related to this change.

viewtopic.php?f=276&t=85397
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Post by AndyPoms
1) This thread is over a year old...
2) What do local users expect the behavior of the "Avoid Dirt Roads" option in the app to be? Here in CT, if you turn on that option with other GPS units, they will not take you on anything that is unpaved - so that's how we map in CT. It also helps that CT DOT flags dirt roads on the FC maps - and that there are no unpaved roads higher that the "local street" classification. Down in Louisiana, they have unpaved roads that have Functional Classifications that are higher & down there the "Avoid Dirt Roads" option is more for roads you can't drive a sedan on.
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Post by ba11zooka
We've got a couple of courts here in town that are town-maintained, graded gravel "roads" that are rougher than most farm roads and would tear the oil pan out of very low sports cars, so I'm always tempted to mark them as dirt roads...

These loop courts don't connect one road to another, for the most part, so it's very unlikely that a user would ever be routed down one except to arrive at a destination.
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Post by Robert04101
The Road Types wiki punts the question of how to use "Dirt / 4x4" to the state level. In Maine we've got a lot of unpaved roads, varying from a rutted pair of dirt tracks leading to a lakeside camp to town-maintained, graded gravel roads (e.g. Splitrock Rd, South Bristol ME). The graded gravel roads are certainly passable in any vehicle, but I'm sure that some drivers would prefer to take a longer, fully paved road rather than a short, gravelly shortcut.

Where should we draw the line on using "Street" vs. "Dirt / 4x4" here in New England states? Or should this vary by state within the region?
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Post by Robert04101
ba11zooka wrote:We've got a couple of courts here in town that are town-maintained, graded gravel "roads" that are rougher than most farm roads and would tear the oil pan out of very low sports cars, so I'm always tempted to mark them as dirt roads...

These loop courts don't connect one road to another, for the most part, so it's very unlikely that a user would ever be routed down one except to arrive at a destination.
Good question, albeit in a low-volume discussion (but all the topics in this part of the forum are low-volume....)

The key question to ask is, how does the map affect routing? The Waze map is not some abstract icon of "truth"--it's a way of generating useful navigation instructions. If there's only one road to a destination and it's a lousy dirt road, what's the point of marking it as dirt? Without checking the particular instance, the risk is that Waze will find a paved road that takes you kinda close maybe to the destination.

Dirt/Private/PLR exist to influence the Waze routing engine. If there's no reasonable alternative route, there's no point in marking a road as Dirt. As a pratical matter, Dirt is most valuable when there are longer but reasonable parallel routes. Here's an example.
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Post by Trotskyist
ba11zooka- This thread is quite old now and your question should posted in it's own thread unless someone else has asked this same question. As this varies state to state please go to the state forum for the state you are editing in and search there.
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