Two sisters are calling on a council to slow down traffic near their home.
Hope and Gabrielle Gagin, of St Mary's Close, Broughton Astley, have collected a petition of 93 signatures from people backing their campaign for traffic calming measures in nearby Frolesworth Road which has a 30mph speed limit.
They will stand up to speak about the issue at a public meeting tomorrow.
Gabrielle, 10, said there had been lots of accidents involving cats and she fears it could one day be a child who is hurt.
"We're worried someone is going to get hit by a car," she said. "Lots of cats have been killed and one cat got hit and lost its tail and then got hit again and died.
"There's a nursery and a park on the road and it's scary crossing it because the cars go so fast.
"We went and asked people for signatures. Now we're going to speak at the meeting. I'm a bit nervous."
Hope, 13, said: "We were really happy with how many people signed the petition – only three or four said they wouldn't.
"I hope the council puts speed bumps down."
Hope and Gabrielle will present their petition to the Leicestershire County Council Highways Forum for Harborough, which will meet tomorrow at Harborough District Council.
Mum Paula said she was proud of her daughters.
"I'm very impressed – it's all been their own work," she said. "The cars do rush along Frolesworth Road and it is dangerous."
Dad Darren, who is a dog trainer with Leicestershire Police, said: "The road is a cut-through for people coming from Magna Park so there's more traffic than you would think.
"The main issue is the speed they come past the park at."
The girls are calling on the county council to put speed bumps on Frolesworth Road.
The petition states: "Little children could run into the road while a car is speeding – this could lead to serious injuries or even death.
"Many people have pets that live down Frolesworth Road and these get hit by cars all the time.
"Cats we know and look after have been hit many times. This upsets and annoys us... and nothing is being done about it.
"An accident is waiting to happen. We are scared that if changes aren't made soon, a serious injury or death of a person is going to happen.
"So please put speed bumps down Frolesworth Road."
Parish and district councillor Paul Dann, who is a member of Harborough District Council, said: "I think it's excellent that these two girls have gone to this trouble to highlight the problem.
"I know the area well and over time it has got busier and more dangerous with new houses and the improved park.
"I would certainly support traffic calming."
