Times have been revealed for road closures when the Tour de France comes through Keighley, Silsden and the Worth Valley.
Roads on the actual route of the Grand Depart race will close from 6.30am on Sunday July 6.
Junctions with the side roads on to the route will also have to be closed at the same time.
Roads are expected to reopen during the late afternoon, but the exact times are subject to public safety and the management of traffic flow.
The news, released by Bradford Council, was accompanied by a warning that vehicle access to, and within, parts of the district would be significantly restricted.
A spokesman said: “Movement of traffic through places like Keighley, Silsden, Cross Roads, Haworth and Oxenhope will not be permitted.”
Steve Seymour, chairman of Keighley Town Centre Association, said that information such as this was now being released on a regular basis.
He was expecting to find out specific details of how the closures would affect central Keighley during a meeting with Bradford Council officers on May 9.
He added: “I'm hoping that after the meeting there will be a more detailed map available from to businesses and customers and how they can access Keighley during the day of the race.”
The closure time was revealed this week by Bradford Council after discussions with TdFHUB2014 Ltd and ASO, the organisers of the race.
The council said the early closure, affecting roads in Addingham, Silsden, Keighley, Cross Roads, Haworth and Oxenhope, was needed to ensure riders could get through the district.
A spokesman said: “The closure times are necessary to allow for the route to be prepared and infrastructure to be put in place before spectators arrive.
“The Tour’s publicity ‘caravan’ of about 180 vehicles, followed by around 200 riders and their support teams, pass through as to pass through.
“The infrastructure then has to be removed and spectators allowed to disperse safely.
“All road opening times are dependant on public safety and the need to manage traffic flow around the event and will be subject to change as planning for the event progresses.”
The council said that pedestrians and cyclists would be able to use and cross the route prior to the main caravan riding.
The council will write to residents and businesses along the route to let them know about how the road closures will affect them. Revised bus and train timetables will be in operation.