From OpenStreetMap Wiki
Jump to: navigation, search

Motorcar vs (passenger) car

The use of the term motorcar might be somewhat confusing, but apart from the specific meaning of the -ambiguous words used, the explanation of the tag motorcar=no shows that "motorcar" refers to the wider category of "double tracked motor vehicles" and not solely to the sub-category of (passenger) cars:

Note that motorcar=no means 'no entry for any power driven vehicle except two-wheeled motor cycles without :side-:car', thus implying hgv=no, motorhome=no etc.

Otherwise a road that would only be openend for (passenger) cars, but not for other double tracked motor vehicles would have to be tagged with [motorcar=yes;no]

Altough I'm not German, it shows that the German language and Wiki for motorcar and is more precise and explicit in this case:

Offizielle Zugangserlaubnis für Kraftwagen und sonstige mehrspurige Kraftfahrzeuge, dazu gehören LKW, PKW, :Busse, Trecker aber keine Motorräder.

Multimodaal (talk) 12:07, 14 April 2018 (UTC)

Not that clear. Altough I'm not German either, "sonstige" says that "Kraftwagen" is also a "mehrspurige" so the group is double-tracked vehicle.

The access wiki page hierarchy says:

      • motor_vehicle=* (category: any motorized vehicle)
        • Single-tracked
          • Sinnbild Kraftrad.svg motorcycle=* (a 2-wheeled motor vehicle, allowed to drive on motorways)
          • moped=* (motorized bicycles with a speed restriction; e.g., at most a 50 cc engine or max. speed of about 45 km/h)
          • Sinnbild Mofa.svg mofa=* ("low performance moped", usually with a maximum design speed of 25 km/h)
        • Sinnbild Kfz.svg Double-tracked (category: motor vehicles with more than 2 wheels/more than 1 track)
          • Sinnbild PKW.svg motorcar=* automobiles/cars (in restrictions it can imply the generic class of double-tracked motorized vehicles)
          • Sinnbild LKW.svg hgv=* (heavy goods vehicle; e.g., goods vehicles with a maximum allowed mass over 3.5 tonnes)

The bullets position shows what traffic category are in the same group. The hierarchy. motorcar and hgv are in the same group. hgv=* can not be used to overrule the motorcar=* Openstreetmap key motorcar can not be explained as as two different explanations, the imply is false

It is time that it gets his own key:double_tracked_motor_vehicle or a shorter name, dt_motor_vehicle

"(category: motor vehicles with more than 2 wheels/more than 1 track)" often so announced in the country law. I like to keep the translation to Openstreetmap as direct as possible, if it is possible in the hierarchy.

Routing engine should import this hierarchy key in their codestring. Then motorcar can stay, what it is a car/motorcar.

Parkings for category use Sinnbild PKW.svg on traffic_signs. There lot of namespaces possible that need :motorcar, now or in the future for area prohibition in time,fuel,year vehicle.

There must be a clear hierarchy.

AllroadsNL 20:50, 16 Septembre 2018 (UTC)

Please change the icon of the traffic sign

As I can read on Czech wikipedia the traffic sign you put in this article is obsolete ( Please change it for the available form of CZ:B03 as you can see on



Yopaseopor (talk) 16:40, 3 October 2018 (UTC)

You are right; Prohibitory signs depicting a passenger car from the side are rare, see
I will change it back to the more common form (frontal silhouette) that already appeared in some versions of this wiki. Best regards (and collecting courage to adress the other points ;-) Multimodaal (talk) 18:57, 3 October 2018 (UTC)

The icon is not correct, the frontview Sinnbild Kfz.svg, with the car from the side Sinnbild PKW.svg, then it is correct! A motorcar is a personal car, automobiles/cars . The icon should only be with the car from the side Sinnbild PKW.svg and not with the red circle from the traffic_sign. The motorcar is mentioned, not a traffic_sign, then it is wrong to make a traffic_sign visible. Motorcar is used for more then only on traffic_sign. Also see above hierarchy. AllroadsNL 21:05, 3 October 2018 (UTC)

we should put both icons, the motorcar from the front in the red circle (motorcar=no) meaning all double tracked motor vehicles, and the car from the side meaning an automobile (for people, but not a bus), i.e. motorcar in other context.—Dieterdreist (talk) 20:02, 3 October 2018 (UTC)
I agree with both of you, tried to express this in current revision. Please improve instead of revert (-:
later I will add something about current tag use, this indicates a wider scope then passenger car as well. Regards Multimodaal (talk) 21:00, 3 October 2018 (UTC)
BTW: There is no separation between the meaning of a frontal and a sideways silhouette in the Vienna convention (Germany seems the exception here): Where a sideways silhouette of a passenger car is stated on another specific prohibition sign, it does not refer to a more specific, but to an even wider category:

"sign C, 10, "DRIVING OF VEHICLES LESS THAN ... METRES APART PROHIBITED". It generally rather depends on the type of sign the passenger car is depicted on, regardless if it is from the front or the side Multimodaal (talk) 21:11, 3 October 2018 (UTC)

The point is that we have to develop the wiki from an Openstreetmap perspective and we can look how countries do it. From Openstreetmap perspective, there are the groups, double tracked vehicle and the passenger car. We as Openstreetmap both have to give them a key and a associated icon. (differently).In doing so, we attempt to follow the countries rules, but in some cases Openstreetmap has to make its own choice.
Both groups are desirable because both must be able to be used. It is needed!
This sometimes means that traffic signs country page where the traffic signs have a different icon than the icon associated with the Openstreetmap description, must be able to use the appropriate key to be able to tag the traffic sign. Translate to Openstreetmap method in their country.(page)
When we choose for two keys, we can avoid tag constructions, as:
The equivalent explicit tagging is: motor_vehicle = no + motorcycle = yes (+ moped = yes / mofa = yes if one of these categories is used in the corresponding country and is not counted as motorcycle). Which are often not fully tagged.a part is contrariwise tagging. For small groups, such as mofa and moped, can this be a disadvantaged. Because it is forgotten, we see this very often also on barriers. No routing. We can avoid this.

Better to tackle the problem at the roots and choose good keys for the groups.AllroadsNL 23:50, 3 October 2018 (UTC)