Campaigners have warned that someone could be killed at a notorious accident blackspot if the 60mph speed limit remains unchanged.
Leeds City Council has produced a plan to earmark speed reduction changes to dozens of roads across the city.
But councillors in Horsforth have hit out at the decision not to include Bayton Lane on the list of proposed changes.
They have spent the last two decades campaigning for changes to the declassified road that has a current speed limit of 60mph.
There have already been a string of accidents along Bayton Lane despite work to improve safety at the junction with Brownberrie Lane two years ago.
Coun Townsley (Lib Dem, Horsforth) said: “When the list was announced we looked frantically for Horsforth but we couldn’t find anything.
“Last year a bus went into a car and I just don’t know how much more serious these accidents have to get.
“Everyone can see that this is an accident waiting to happen.
“This has been rattling on for about 20 years and still nothing has been done.
“One of these days it will be loss of life and that is something we don’t want.”
PC Conal Hills was killed on Bayton Lane when he was hurled from his car during a high-speed chase in 2006.
The officer, who was not wearing a seatbelt, lost control and the car spun, hit a wall and rolled over.
He suffered severe injuries including brain damage and died 24 hours later.
The councillors have also called for speed restrictions around schools in Horsforth and Rawdon to protect pupils.
Coun Cleasby (Lib Dem, Horsforth) added: “It is just crazy that nothing has been done.
“If we are going to have more houses crammed into Horsforth and more traffic on the roads then we need more protection for residents.”
Around 45 routes have been reviewed by the council’s safety officers.
And 24 of them have been given recommended changes including the A660 Otley Road through Adel.