Brighton and Hove Friends of the Earth has objected to the council's proposals for Lewes Road.
A permanent loading bay has been put forward by Brighton and Hove City Council close to the Elm Grove junction. Currently the loading bay is only meant to be used in off-peak periods.
BHFOE is concerned that a 24hr loading bay will result in the cycle lane to the Vogue Gyratory and out to the universities being permanently blocked at this busy location. They say this could increase the danger for cyclists and deter people from cycling and also make it harder for buses to access the bus stops beyond the loading bay, even with the bus stops being extended.
The local group has also called for the clearway times to be modified to keep the cycle lanes clear from 3pm, instead of 4pm at present, to make it safer for children cycling home from schools in the area.
Chris Todd of BHFOE said:
"Making the loading bay permanent, operating 24 hours a day, is a backward step. It would be permanently parked in, forcing cyclists out into the mainstream traffic. This would deter some people from cycling, while putting others at increased risk.
"The biggest problem is the lack of enforcement, but giving up and making things more dangerous for cyclists is unacceptable. The loading bay could also make it harder for buses to properly access the stops, making it more difficult for older and disabled people to use them.
"A major omission is that the council has failed to take the opportunity to extend the clearway times in the afternoon to keep the cycle lanes clear for children coming home from school or going to the park. It needs to revisit this TRO and resolve these issues urgently."