Praha/Cyklistická infrastruktura

It is planned to use IPR Praha cycling data to update cycling data (eg. cycle lanes) on OSM. The data is of high-quality, but conversion of features is needed before using this data on OSM. Also, it is planned to input everything manually, without removing any tag. Tag replacement will be done only in case where it is possible to confirm it on satellite or street-level imagery, checking edition data first.

Goal

This project aims to manually conflate bicycle infrastructure from Institut plánování a rozvoje - IPR Praha.

Schedule

1. April 2023: Data preparation, discussion in the OSM CZ Telegram group, and data testing and validation.
2. future: Editions beginning
3. future: Editions ending

Data to be used

Data description

The data is provided by the Prague Institute of Planning and Development (Institut plánování a rozvoje), through its Open Data portal. The data is constantly updated, and is available in different formats, such as GeoJSON or SHP. The data is of a great quality (positioning and correctness), but the geometry is not 100% accurate.

Data source

The data can be accessed on the aforementioned portal (in Czech).

License of access and use

The OSM community has explicit permission to use the IPR Praha data.

Size of the data set

The GeoJSON WGS84 file is 5.7MB. There is a total of 1,839.81 km of cycle infrastructure.

Data conflation

This is the strategy to avoid conflicts with existing data:

• If possible, initially a filtering must be made in Overpass Turbo, observing cycle lanes that are already mapped in the OSM, and then remove those lanes from those provided by IPR. If not possible, a manual check is mandatory.
• In principle, cycle lanes that are already mapped in the OSM must remain, as recommended. Eventually, if they are in significant disagreement, they can be complemented by those from the IPR layer, maintaining the OSM tagging data.

Data input

Given that there are already many cycle lanes mapped, inputting new data requires manual intervention, so a manual editing is planned with a review of each object to be uploaded.

Description of features and tag compatibility

This is a quick suggestion, but editing will be done confirming the feature with imagery.

Comparison between IPR Praha code system and OSM tags

DOPR_STAV	CZ	EN	Tagging plan
1	Piktokoridor	Shared lane	cycleway=shared_lane
2	Cyklopruh	Cycle Lane	cycleway=lane
3	Buspruh	Shared bus lane	cycleway=share_busway
4	Cykloobousměrka	Opposite lane or shared lane	cycleway=lane or cycleway=shared_lane on opposite direction
5	Bezmotorová cesta	Non-motorised path	check road category + bicycle=yes/designated
6	Stezka pro chodce a cyklisty společná	Shared pedestrian and cycle path	highway=cycleway + foot=designated + bicycle=designated
7	Stezka pro chodce a cyklisty prostorově oddělená	Pedestrian and cycle path spatially separated	highway=cycleway + highway=footway (separatedely mapped) or the above + seggregated=yes
8	Samostatná cyklostezka	Separate cycle path	highway=cycleway
9	Přejezd přes silnici, křižovatku	Bicycle and pedestrian crossing	highway=cycleway + cycleway=crossing + bicycle=designated + foot=designated
10	Pěší zóna s cyklistickou dopravou	Pedestrian zone with cycle traffic	highway=pedestrian + bicycle=yes
11	Obytná zóna	Residential zone	highway=living_street
12	Cyklotrasa v běžné ulici	Cycle route in a regular street	check road category + bicycle=yes/designated
13	Průjezd zákazem vjezdu-legální	Passage through a no-entry zone-legal	Not sure, but seems access=no + bicycle=yes, but will leave those out since they are few
14	Cyklojednosměrka	Cycling one-way	? (Very few roads like this, probably will skip those)
15	Cyklisto veď kolo	Cyclist lead the bike	bicycle=dismount
16	Cyklotrasa na rušné komunikaci	Cycle route on a busy road	Relation type=route + route=bicycle
17	MTB trasa, singletrack	MTB route, singletrack	highway=track + bicycle=yes
18	Chodník s povolením jízdy	Sidewalk with bike permission	highway=footway + bicycle=yes
19	Přívoz	Ferry	Add bicycle=yes on ferry routes
20	Chodník	Sidewalk	highway=footway + footway=sidewalk
21	Ochranný cyklopruh	Protective cycle lane	cycleway=soft_lane
121	Cyklotrasa ve zklidněné ulici	Cycle route in a calmed street	Relation type=route + route=bicycle
122	Cyklotrasa v extravilánu	Cycle route in the outskirts/rural area	Relation type=route + route=bicycle
123	Cyklotrasa na neprůjezdné silnici	Cycle route on roads closed to regular traffic	Relation type=route + route=bicycle

Work plan

It is proposed to carry out the work by features, starting from the most important (separated cycle ways, for example) to the least.

Regression plan

If necessary, the changes will be undone using the JOSM/Plugins/Reverter plugin.

Acknowledgments

We would like to thank the contribution of the Prague Institute of Planning and Development - IPR Praha in providing the data. We also gratefully acknowledge the support from CycleAI, which allowed us to work on this project.