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==Turn lanes== | ==Turn lanes== | ||
Firstly, the majority of junctions do '''not''' need turn lanes at all. | Firstly, the majority of junctions do '''not''' need turn lanes at all. Waze gives advanced warning of upcoming turns, it is up to the user to pick the relevant lane for the approaching turn. Turn lanes are only really needed if they are really long, or the junction is sufficiently complicated to need clearer navigation instructions. | ||
If turn lanes really are of benefit to the driver, then they should be mapped in the following way: | If turn lanes really are '''of benefit''' to the driver, then they should be mapped in the following way: | ||
*The turn lane segments should have '''no name''', so that the instructions read out the name of the next street. | |||
*The turn lane segments should have no name, so that the instructions read out the name of the next street. | *The ''Road Type'' should match the type of the roads they lead to (and '''never''' ramps). Only the main carriageway stays as the higher ''Road Type''. | ||
*The | *The angle at the beginning of the turn lane should be shallow, so that Waze says ''Keep Left / Right'' at that point. | ||
*The angle at the beginning of the turn lane should be shallow, so that Waze says | *The end of the turn lane should have a clear '''turn''' instruction near to the give-way point, unless the traffic merges onto the new road with right-of-way. | ||
*The end of the turn lane should have a clear |
Revision as of 15:52, 27 November 2017
Turn lanes
Firstly, the majority of junctions do not need turn lanes at all. Waze gives advanced warning of upcoming turns, it is up to the user to pick the relevant lane for the approaching turn. Turn lanes are only really needed if they are really long, or the junction is sufficiently complicated to need clearer navigation instructions.
If turn lanes really are of benefit to the driver, then they should be mapped in the following way:
- The turn lane segments should have no name, so that the instructions read out the name of the next street.
- The Road Type should match the type of the roads they lead to (and never ramps). Only the main carriageway stays as the higher Road Type.
- The angle at the beginning of the turn lane should be shallow, so that Waze says Keep Left / Right at that point.
- The end of the turn lane should have a clear turn instruction near to the give-way point, unless the traffic merges onto the new road with right-of-way.