Talk:Proposed features/transit

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Crossing lanes

The proposal seems to assume that lanes are not crossing each other between the "from way" and the "to way". This assumption is not true in reality. Examples:

  • changing to right turn lane might need to cross a bicycle or bus lane
  • left turn bicycle lanes between motor vehicle lanes might be entered by explicit crossing of motor vehicle lines.
  • bus lanes might change side

--Slhh (talk) 18:16, 7 March 2015 (UTC)

Could you please provide a photo of such situation? --Imagic (talk) 07:50, 17 March 2015 (UTC)
Here an example of a cycleway crossing.--Jojo4u (talk) 20:28, 25 July 2015 (UTC)

Lane numbering

You have introduced lane numbering in the placement proposal. Why not simply use these numbers as destination lane for key transit? This would also solve the crossing lanes issue.--Slhh (talk) 18:21, 7 March 2015 (UTC)

Readability, ease of use, analogy to the key turn. --Imagic (talk) 07:50, 17 March 2015 (UTC)

Starting lanes

Examples #1 and #3: The starting lane in the "to way" seems to be a pure feature of this way. Therefore it should be tagged on the "to way". One method to do this would be to set the starting width of the lane to 0:

Example #1: width:lanes:start=||0
Example #3: width:lanes:start=0||

The ability to change to the starting lane can be specified using change:lanes. --Slhh (talk) 19:18, 7 March 2015 (UTC)

The key width:lanes:start could be used to provide the width and this then could be used for guessing the right lane connections. The key/relation transit is about the exact specification of the lane connections. --Imagic (talk) 07:52, 17 March 2015 (UTC)

Transit to Transition

The word transit is confusing, can we use the term transition which better represents what is proposed. Maning (talk) 13:48, 8 September 2017 (UTC)

My thoughts exactly & perhaps the slightly wordier highway_transition. Transit may well be mistaken for an alternative to public_transport. Avoid. SK53 (talk) 15:35, 8 September 2017 (UTC)
would lane_transition be better? Maning (talk) 11:28, 12 September 2017 (UTC)
I would also say that lanes:transition would be a better name for this. --Polyglot (talk) 07:30, 11 June 2018 (UTC)

Tagging the way

In the relation-less scheme, the fact that the "from way" is tagged, but the tagging actually applies to the end node of that way creates some new challenges for editing and processing, I expect. Splitting a way with a transit tag now results into something that means something different: now both the original end node and the node where the split was applied have a transition. Similarly, it is no longer possible to merge two continuing ways that have the same tags. (I don't know if this also applies to other tags, but I can't think of any.) Of course you can often recover from this when processing the data (as you can tell that the tag is the same and the number of lanes will almost always no longer match), but I do wonder if it wouldn't be possible to avoid this. Maybe only have an option to tag the node itself (if the number of incoming and outgoing ways are both 1), and the option to use a relation if multiple incoming or outgoing ways are involved? --Xnyhps (talk) 08:14, 14 October 2017 (UTC)

I had missed link to ticket 11054 for JOSM which addresses the same problem. --Xnyhps (talk) 18:37, 15 October 2017 (UTC) is a working link Mateusz Konieczny (talk) 06:06, 11 June 2018 (UTC)

Fundamental issues ("I can't support transit:lanes") - "I notice that `transit:lanes` has already been tagged on around 4000 or so ways, so I thought it would be worth pointing out that the proposal is Dead on Arrival in it’s current state. We should rework it before people tag too many more of these and end up disappointed." Mateusz Konieczny (talk) 06:05, 11 June 2018 (UTC)

In this tagging scheme was described as horrible by a Vespucci developer Mateusz Konieczny (talk) 16:33, 11 June 2018 (UTC) has discussion about supporting it in JOSM Mateusz Konieczny (talk) 16:35, 11 June 2018 (UTC) is about OSMand support Mateusz Konieczny (talk) 16:37, 11 June 2018 (UTC)