Use [maxwidth=2][1]. [maxwidth=2][1] if this is the *legal* limit. Usually we tag the legal *legal* state as well as the physical *physical* state of the road ([surface][2], [smoothness][3], [tracktype][4], [maxspeed][5], [maxspeed:practical][6], [maxheight][7], [maxweight][8] and so on). We don't tag "suggestions" like "avoid the road if possible", this is the task of the routing engine. [1]: https://wiki.openstreetmap.org/wiki/Key:maxwidth [2]: https://wiki.openstreetmap.org/wiki/Key:surface [3]: https://wiki.openstreetmap.org/wiki/Key:smoothness [4]: https://wiki.openstreetmap.org/wiki/Key:tracktype [5]: https://wiki.openstreetmap.org/wiki/Key:maxspeed [6]: https://wiki.openstreetmap.org/wiki/Key:maxspeed:practical [7]: https://wiki.openstreetmap.org/wiki/Key:maxheight [8]: https://wiki.openstreetmap.org/wiki/Key:maxweight

Use [maxwidth=2][1]. Usually we tag the legal state as well as the physical state of the road ([surface][2], [smoothness][3], [tracktype][4], [maxspeed][5], [maxspeed:practical][6] [maxspeed:practical][6], [maxheight][7], [maxweight][8] and so on). We don't tag "suggestions" like "avoid the road if possible", this is the task of the routing engine. [1]: https://wiki.openstreetmap.org/wiki/Key:maxwidth [2]: https://wiki.openstreetmap.org/wiki/Key:surface [3]: https://wiki.openstreetmap.org/wiki/Key:smoothness [4]: https://wiki.openstreetmap.org/wiki/Key:tracktype [5]: https://wiki.openstreetmap.org/wiki/Key:maxspeed [6]: https://wiki.openstreetmap.org/wiki/Key:maxspeed:practicalhttps://wiki.openstreetmap.org/wiki/Key:maxspeed:practical [7]: https://wiki.openstreetmap.org/wiki/Key:maxheight [8]: https://wiki.openstreetmap.org/wiki/Key:maxweight

Use [maxwidth=2][1]. Usually we tag the legal state as well as the physical state of the road ([surface][2], [smoothness][3], [tracktype][4], [maxspeed][5], [maxspeed:practical][6] and so on). We don't tag "suggestions" like "avoid the road if possible", this is the task of the routing engine. [1]: https://wiki.openstreetmap.org/wiki/Key:maxwidth [2]: https://wiki.openstreetmap.org/wiki/Key:surface [3]: https://wiki.openstreetmap.org/wiki/Key:smoothness [4]: https://wiki.openstreetmap.org/wiki/Key:tracktype [5]: https://wiki.openstreetmap.org/wiki/Key:maxspeed [6]: https://wiki.openstreetmap.org/wiki/Key:maxspeed:practical