I no longer commute into downtown Vancouver, so I cannot speak as to the daily traffic chaos of the past few years.

But here in Richmond traffic is made worse when the City rezones and allows large  developments to be built without giving up  land for right turn lanes to enter off the main roads.  

The traffic cluster, especially in morning and afternoon rush, at the Ironwood shopping centre before the Massey tunnel is made worse because the City allowed the complex to be built without a long dedicated right hand turn lane southbound on Steveston Highway.  

Same for the new Gardens (retail and condo) complex on the other side of the road, the access lanes are totally inadequate.

What, when upzoning from acres of sf detached to 12 floors of condos and a huge shopping complex,  the City could not demand from the developer proper egress? Let alone allowing for  bike lanes, which they did not.

Btw, traffic from the new 10 lane Massey Bridge will feed into this congested area.