Roadworks dangerous for cyclists

I had an accident on my racing bike exiting these roadworks on Monday evening. I did not break any bones but an ambulance needed to be called and I sustained injuries to my left leg which mean I cannot currently walk without the aid of crutches. My accident occurred as I exited the roundabout onto Copenhagen drive in the direction of MacDonald's. A barrier has been placed along the curb that stops just before the access ramp to the cycle way. In my opinion the barrier is too wide and stops too close to the cycle way ramp. You either have to brake very sharply to access the ramp or turn sharply. I did the latter as I believed this was less dangerous than breaking sharply on the exit of a roundabout with a car behind me. I did not have space to access the ramp and struck the kerb. If you are travelling at any speed exiting the roundabout it is hard to access the ramp with the current configuration. I normally travel reasonably quickly through roundabouts as the roard is being shared with cars and you need to keep a reasonable speed. Can you please remove the barrier from this area to give cyclists more space to access the ramp onto the cycle way. I fortunately finished up on the pavement but if I had landed in the road this accident could have been way more serious. I believe that a similar accident could occur as I am an experienced cyclist familiar with this route and I have not had an accident for more than 20 years. Best Regards Alan Parker