[Hanni]

Originally Posted by ken0042

There's a solid yellow line there, and it's a 60 zone. Passing is permitted.

In urban areas posted at 70 km/h or less,
yellow single solid line indicates that a driver
shall not cross the single solid line from one
lane to another except when overtaking and
passing another vehicle. Use of broken yellow
line is not therefore required in urban areas to
indicate that passing maneuvers are allowed.
(Page 16.)

Originally Posted by FireFly

Good luck in morning rush, but thanks for the tip.

Originally Posted by Cheerio

Been driving for 6 years and never knew this. Thanks!

I don't know for the sure what the law is but I think it's important to note the part in bold at the beginning of quoted section

On urban streets under Alberta Transportation
jurisdiction posted at 70 km/h or less, the
directional dividing marking shall consist of a
single yellow line 100 mm wide.

In urban areas posted at 70 km/h or less,
yellow single solid line indicates that a driver
shall not cross the single solid line from one
lane to another except when overtaking and
passing another vehicle. Use of broken yellow
line is not therefore required in urban areas to
indicate that passing maneuvers are allowed

Urban streets in Calgary (and most towns and cities) will not be under Alberta Transportation jurisdiction but that of the City. Maybe the same applies, I'm not sure, I'd be curious to see if a cop would pull you over for it.