Talk:YOURS/weird routes

From OpenStreetMap Wiki
Jump to: navigation, search

u-turns on primaries and trunks

The cases described as "no u-turns on a primary or trunk highway" might be a difficult one, as in urban environments such restrictions might not be present. Adding a (time) penalty for really sharp turns (>160 degrees) would not enforce it, as the next legal ramp might be kilometers away... Adding a restriction relation for each and every such ramp seems quite a burden. Any thoughts? Alv 11:31, 3 October 2008 (UTC)

No-U-turns aren't default properties for any kind of road at this moment, so the only solution is to enforce them with specific turn restrictions. Having a time penalty will only help in a few cases and won't help in others so I see no other option then to add the turn restrictions, unless we can all agree that these restrictions apply to e.g. motorway, motorway_link and trunk. --Lambertus 21:03, 3 October 2008 (UTC)
Perhaps a proportional penalty depending on the angle would be suitable? Certainly the angle of insersection at the node should be less than 30 degrees for a grade-separated junction, and flat turns of over 105 degrees are awkward to negotiate anyway. If the angle on a motorway is more than 120 degrees, you're definitely going the wrong way. If you're not, then one or more of the ways isn't tagged properly. Chriscf 17:10, 5 October 2008 (UTC)

YOURS + Openstreetbugs

Can Openstreetbugs and this page be combined in someway?

Yes, it can. Parse the list and insert it into OSB via the OSB API. But why have a separate list in the wiki if it can be added directly as a bug when using YOURS? Just add an OSB layer to OpenLayers and talk to the OSB API. --emka 17:13, 30 June 2009 (UTC)

Fix the mistaken reports tables

The wikitable bellow doesn't behave well if you add another section bellow it. Try it by pressing the + above to add a new section.

mistaken reports

Generic routing
route description cause solution
new Wrong route for Car car route trough Way 25983510 which is: access: permissive, bicycle: yes, foot: yes so it should be NOT accessible for cars/motorbikes access=permissive allows any traffic. it just can be blocked by the land owner after the map data was entered
new Not sticking to the A Road --Rjmunro 23:27, 12 October 2008 (UTC) That trunk road was not connected (no shared node) to either of those two roundabouts.
data error Unnecessary exit from the motorway. I compared this to and the latter one routes straight on, so I think it's not a data problem. Motorway carriageway leading south is missing between St 2018 and NU 15. Unknown why the other service could route it since it's not available for undeletion, either. Add the missing southbound stretch of highway.
invalid Routing contrary to a Relation:restriction. In this case, turns from way 3372460 right onto way 2957009 are prohibited by a sign. The relation representing this is relation 15857. A route via Between Towns Road should be chosen due to the presence of the restriction in this case.

Note that turning left followed by turning back somewhere down the road would be a valid manoeuvre, albeit one that should probably remain fairly low-ranked. --achadwick 13:19, 17 October 2008 (UTC)

Actually, it turns out that I'd just not put a required 'via' node in the relation. Mea culpa. --achadwick 13:40, 17 October 2008 (UTC)
Turn restriction relations (there are two types!) not understood?
Understood but comments in the gosmore source suggests that a correct via node is required.
Indeed --achadwick 13:40, 17 October 2008 (UTC)