Campaigners fear thousands of cars taking people to a proposed ice skating arena will spoil one of Britain's finest conservation areas.
Brighton and Hove City Council's policy committee will decide on Wednesday the future of the derelict Black Rock swimming pool site.
Councillors are being recommended to choose an ice-based international arena in preference to a five-star hotel and spa.
But the Kemp Town Society says it is seriously concerned about the traffic implications of the arena, which could take up to 11,500 people.
It has requested permission to ask a public question at the start of the meeting, calling for assurances from the council about coping with traffic.
Spokesman Derek Granger, who lives in nearby Chichester Terrace, said: "How are 11,500 people going to get into what is effectively a cul-de-sac where there is little parking? It's beyond me.
"There is talk of a rapid transit system and tramways but there is nothing firm about transport.
"If this is agreed and big events take place there, I think it will lead to a serious deterioration of the area."
The arena would be close to a high-level conservation area containing many Grade 1 listed buildings.
Council deputy chief executive Alan McCarthy said: "If either scheme is to be successful, it will need to address the need to minimise the use of the private car and to support improvements to public transport access."
Mr McCarthy said the South Coast multi-modal study states bus services along the seafront should be improved in the short term with guided buses and light rapid transit options to be considered in the long term.
He added: "The council will work with the developer to ensure that by the time the new Black Rock development is open, the required improvements in public transport are in place."
Developers of the ice arena have said they are working up a transport impact assessment which will be put in together with a planning application if the council chooses them.
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