Ian wrote:

"Clive" wrote:
Depresion writes:

it makes life easier for the few people who drive buses and screws
up traffic for far more people.

Correct, in the little town where I live, on a main road is a bus stop
and right opposite it is an island in the middle of the road so that when the
bus stops all traffic behind is held up, not even a cyclist could get through.

The object is to stop traffic overtaking a stationary bus in the sort of
area where people leaving the bus might cross the road. Stops them being
flattened, also allows the bus to move off again quickly. It is actually
quicker for ALL the traffic if numpties do not try and overtake a bus as it
moves off. (For the hard-of-thinking, if a bus remains stationary with its
righthand indicator going, waiting to move off, overtaking cars will overtake
more slowly as the road width is restricted by the presence of the bus,
traffic coming the other way will also have to slow down - or even stop! -
whereas, if the following traffic waits while the bus unloads and then moves
off WITH the bus, the overall delay is shorter, except for the handful of
cars that would otherwise manage to squeeze by. THEY are the ones that slow
everything down.)
Such an arrangement should NOT be at a timing point or a point where
large numbers of people are likely to board or alight from the bus. The bus
dwell time should be kept to a minimum.

You love that word "should", don't you?

Here's a word: "Why"?

Or put another way: "Says who?".