Children, parents and campaigners have voiced their opposition to plans for new bus lane routes along a busy Cardiff road.
The Caerphilly Road into Cardiff is a major artery into the city
On Sunday more than 100 people marched against the scheme to build new cycle and bus lanes along the A469.
The protestors walked from Birchgrove School to Llanishen with placards to show their concerns.
Their protest is part of a bid to keep up the pressure on Cardiff Council's cabinet before they meet to discuss the issue in March.
The A469 Residents Action Committee is against the idea because they are worried about congestion and safety for parents and children crossing bus lanes.
But a local cycling group, the Cardiff Cycling Campaign, has welcomed the plans.
They want to see an end to blocking cycle paths by motorists and believe another measure - traffic lights on the Safeway roundabout - will help cyclists.
However, local resident Pauline Johnstone said she would urge councillors not to install traffic lights on the roundabout.
"I have four children and I live on Thornhill Road near the roundabout," she said.
"I feel traffic lights would delay my journey time back and to from school."
Heath and Birchgrove councillor Graham Hinchey organised Sunday's protest.
He said he has been inundated with e-mails and letters from worried parents.
Their concerns include making side streets around Birchgrove, Rhiwbina and Llanishen into 'rat-runs' as people try to avoid congestion.
"I have had loads of letters from parents concerned about crossing the bus lanes, " he added.
"I have had letters from as far as Caerphilly - I had 20 emails last night about it.
Councillor Hinchey said the plans for the A469 are a highways issue and will be dealt with by the cabinet at Cardiff Council.
The councillor has met with leader Russell Goodway to express the concerns of locals.
"Russell Goodway showed a lot of sympathy, he said he would review it over the next four to six weeks," he said.
"Even he was surprised by the amount of letters and emails as well as media coverage.
"As it is a cabinet issue I cannot vote, even though I am the longest-serving councillor I am not part of the decision-making," added Cllr Hinchey.
Cardiff Council aims to cut bus journey times and reduce city centre traffic.
Consultation between interested parties is still being carried out.