Iraq highway shields

[1ec5]

Added a shield definition for Iraq (national) highways. Only highways have been mapped as relations so far; numbered freeways and roads don’t have relations yet. As in Iran (#463), route shields in Iraq bear both writing systems on separate panels, but this style is only showing the Western Arabic numerals that have been tagged in ref.

[ZeLonewolf]

Are the wide rectangles a deliberate design decision based on OTG signage?

Also, I notice the "5" route in the northeast of the clip above, is that an artifact awaiting a tile update?

[1ec5]

Are the wide rectangles a deliberate design decision based on OTG signage?

This was @claysmalley’s suggestion in #557 (comment). You can just barely make out the green highway shields on the left side of this photo:

Also, I notice the "5" route in the northeast of the clip above, is that an artifact awaiting a tile update?

That’s Road 5. So far, two roads have been tagged network=IQ-road. Should we add support for this tag even though it uses a hyphen instead of a colon? As far as I know, roads have the same green shield as highways.

[claysmalley]

In general, I'm not in favor of supporting network values like XX-roads where XX is a country code. I think these network values sprung from a misunderstanding of European road networks (e-road, FR:A-road, etc.) and there's a better country-and-colon-prefixed value to use in every case.

[1ec5]

We can take care of roads and motorways in separate PRs once the tagging for those catches up to the tagging for highways.

[claysmalley]

Looks good to me.