Can I run a red light at a T junction?
Unless there are specific local laws or signage saying otherwise,*

NO. THE RED LIGHT MEANS STOP. AND IT MEANS EVERYBODY.

The traffic lights are there for everybody's safety, not just yours.


Pedestrians may be trying to cross, either because they have a green light or because there's nobody coming out of the side-road at the moment.
Bicycles turning left from the side-road will be expecting the cycle lane to be clear for them to enter. They're already having to check behind them to make sure no car is either about to turn right across them, taking a wide line round the corner turning left or trying to overtake while turning left, where there isn't room. It's very hard to do that and simultaneously check for people in the cycle lane. I come across this exact situation at the very last junction on my commute into work: it is very dangerous.


Also, at a more general level, a lot of motorists believe that cyclists are a bunch of scofflaws who don't deserve respect on the road because they don't obey the law. Motorists disrespecting cyclists is very dangerous for us, so please don't give them any excuse to do it.



* Now that an image of the specific junction has been added, I agree with Argenti Aparatus's answer that the absence of a stop line in the cycle lane suggests that local law does say otherwise in this case, and cyclists may go through this red light.