OSM supports really complex opening times, apparently.

This node, a roof-top bar in Stratford, London is opening on the 20th of April. The following are the opening times per their website:

• April 20th to April 30th : Thursdays to Fridays 5pm- 11pm, Saturdays-Sundays 12-11pm
• May 1st- May 14th: Wednesdays to Fridays 5pm- 11pm, Saturdays-Sundays 12-11pm, Bank Holidays 12-11pm
• May 15th- end of September: Tuesdays to Fridays 5pm- 11pm, Saturdays-Sundays 12-11pm, Bank Holidays 12-11pm

The opening_time value I came up with is this:

Apr 20-30 Sa-Su 12:00-23:00; May-Sep Sa-Su 12:00-23:00; Apr 20-30 Th-Fr 17:00-23:00; May 01-14 We-Fr 17:00-23:00; May 15-31 Tu-Fr 17:00-23:00; Jun-Sep Tu-Fr 17:00-23:00; Oct-Dec off; Apr 20-30 PH 12:00-23:00; May-Sep PH 12:00-23:00

It also helped that there exists a handy tool that can visualise complex opening_time values.

I am looking forward to seeing how OSMAnd handles this when it eventually gets the updated node.

I was mapping public transport routes and stops waaay north in Chennai city when I noticed an existing stop that had local_ref=IIT. This rung so loud a bell in my head that I went to Overpass Turbo to dig up all nodes with that tag. Surprise, surprise..

Background and context 🗺️

I’ve been using JOSM to map missing public transport routes in Chennai. It’s a project I’ve been doing for personal reasons ^{which I intend to elaborate in another post} and I began with iD only to find later that the order of the route segments matter and iD doesn’t make it easy to do reorder segments.

So I started using JOSM with a helper plugin I found. This has made my workflow much easier and faster. One small annoyance though is that I could only download a small section of a fairly large city to edit the map in JOSM. I discovered I could download larger areas if I carefully picked specific ways or nodes since the limitation (to downloading data) is the total size of data that OSM can return.

So I went and searched the web for examples of OverpassQL and their explanations, learned what I could about how the QL works in the time I had and strung together a quick and dirty query that downloads ONLY roads and bus stops within the bounding-box (that I get to easily draw in JOSM).

This probably could be improved for concision. This is the OverpassQL I use to download roads and existing relations in order for me to map bus routes using JOSM’s overpass-based data import dialogue window.

[out:xml][timeout:90][bbox:{{bbox}}];
(
  wr["highway"="primary"];
  wr["highway"="primary_link"];
  wr["highway"="secondary"];
  wr["highway"="secondary_link"];
  wr["highway"="tertiary"];
  wr["highway"="tertiary_link"];
  wr["highway"="trunk"];
  wr["highway"="trunk_link"];
  node["highway"="bus_stop"];
  node["bus"="yes"];
  node["public_transport"="platform"];
  node["public_transport"="stop_position"];
);
(._;>;);
out meta;

This has some nice conveniences for me:

… See full entry

Specs

Ministry of Road Transport and Highways (India) manuals for standards and specifications for four and six laning of national highways. As seen on National Highways Authority of India (NHAI) website

Specs for four-laning of national highways: Scanned PDF Link - 2.8MB

Specs for six-laning of national highways: Scanned PDF Link - 2.3MB

New NH numbering scheme

Department of Road Transport and Highways (DORTH) published a new numbering system for national highways: Scanned PDF document - 3.3MiB (28th April 2010)

The document reads in English from page #21.

Old numbers: Wikipedia Link

New numbers: Wikipedia Link

References

1. Ministry of Road Transport and Highways (MORTH) - http://morth.nic.in
2. Department of Road Transport and Highways (DORTH) - http://dorth.gov.in