@ the OP
Who are you and what is someone from Dallas, TX doing meddling in Portland, OR business?
FWIW, it is impossible for a car to make a right angle turn adjacent to the curb. Physics don't allow it because the rear wheels track inside the front wheels. Where it is useful for cars to make turns from the curbs, such as at heavily traveled intersections where cars stop, then turn, and it is useful to form two lines of traffic, we typically use a right turn only lane (RTOL) with the bike lane running to the left of it to make such a maneuver explicit. At other times when a full RTOL is not warranted, we will drop the bike lane prior to the intersection by turning the solid bike lane line into a dotted line and allowing cars to merge into the area, in-line with any cyclist.
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Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --
the tiniest sprinter