Part-Time Bike Lanes

Yes, Anthony, having a part-time bike lane somewhere is worth exploring - I don't mean to dump on the idea as much as the headline suggests.
But what would it look like? How would it be marked? How would it function? Would there be any enforcement?
And while it may seem like it'd be a way of getting more bike lanes in more places, it can also be a means to dilute what we already have. You weren't around for the fracas with the College lane between Spadina and Bathurst where the local Res Assoc and Brown and Storey were keen on having a "moveable" bike lane. (I was).
They suggested removing the westbound bike lane for a wide curb lane instead with new markings - I can't remember exactly what was suggested, but it was inferior for a key five/six blocks of our limited core bike network.
So we had to squawk and be obstreporous - but we were able to keep the westbound bike lane despite making life difficult for then-Councillor Chow, and we were also able to get the thing continuous as the streetcar tracks were jogged south a bit to eliminate a narrower part of the street on the north side (there's an ever so slight curve in these blocks it seems)
As for Bloor/Danforth - given that 15 years ago the wider segments in the core were given the #1 desirable status for east-west bike lanes, why be so timid in light of all the climate problems and our lack of constraining emissions?The subway offers so much mobility that it makes this segment the most logical place in Southern Ontario for bike lanes in my view.
Maybe for the tighter portions between Spadina and Dundas St. W/Roncesvalles something could be suggested as it's closer to Harbord St, than the eastern wider segments is to Wellesley St.. Queen St. might be superb for this: maybe it's just a rush hour no cars in curb lane - all for bikes signage/bylaw (which would require political will beyond the normal batch of sustain-the-bull).
But I'm less keen on compromising and moving to a new "standard" if we don't have a network sub-committee or equivalent to thrash this out.
And it'd be really helpful if you, and readers could suggest signage and markings and even examples where this is done.

I'm not all sure about this idea.

My problem is envisioning how it would work.

Hamish raises many of the same points above.

If it looked like a bike lane; and we allowed parking sometimes...Wouldn't drivers get the idea its ok to park in bikelanes????

We already have a problem with that.

On other hand, if it looks like a normal traffic lane/parking lane; then why would drivers drive through it, if it were not obstructed by parked cars?

Unless were planning on pushing the city to play with retractable bollards.....

I just don't see how this comes out working well.

I would much rather not compromise, of course......

But if compromise is a must; then I'd rather seek bike lanes one way on a street, and run a parallel route the opposite way on another street; or just get the essential streets for the network; build up the biking movement, then come back for others as numbers warrant.

Though at this point, we cant' even seem to get approved bike lanes painted. There are still lanes approved LAST YEAR (Lower Yonge) that have not gone in; and many lanes approved since spring that we are waiting for; sigh.

One thing at a time; I guess.

Jarvis (I think it's Jarvis) has a central traffic lane that runs north in the morning rush and south in the evening rush, designated by an overhead light.

Perhaps a curb lane could be designed the same way -- with a red light for cars during rush hour (when it is a designated bike lane) and a green light for cars on off periods to allow parking.

There would obviously be some infrastucture costs, but drivers are well trained to respond to red lights as "no-go."