At busy times of day, it is very difficult for cyclists to turn out of Pembroke Street when turning right onto Trumpington Street. Trumpington street has priority and there are no traffic lights. This creates the following problems:
1) Cyclists turning out of Pembroke Street right onto Trumpington street when there is not enough space/time to do so. This causes a lot of braking and it is common to see a lot of people braking or hear a car horn because of this.
2) Build-ups of cyclists waiting to turn out of Pembroke Street get in the way of buses turning into Pembroke street (as buses need more turning space).
This is particularly bad around 9am.