Surveys to identify and upgrade barrier-free zones around MRT and LRT stations are expected to be completed by the third quarter of this year.
Officers from the Land Transport Authority (LTA) have been marking out problem spots like uneven ground and steep slopes around the existing 110 stations.
And priority has been given to older estates with a higher population of the elderly and the disabled.
Tong Cheong Yaw, Manager, Architecture, LTA, said: "One of the main features are the ramps. We're looking at making sure that the roads are flat enough, comfortable enough for the wheelchair, the mothers with prams and for the elderly to walk."
That includes levelling steep slopes to a gentler gradient of only 4.76 degrees from the ground or to a minimum of 1:12 which means, for every 12cm of distance, there must only be 1cm of elevation.
LTA said priority would be given to mature housing estates like Redhill and Queenstown.
Peter Lim, Chairman, Queenstown Lengkok Bahru Zone, ResidentsÂ’ Committee, said: "A lot of old folks are using wheelchairs. With ramps and barrier-free access, they can really move around."
And that is the feedback grassroots leaders at Redhill have been getting from their residents.
More than one-third of them are senior citizens and the lack of ramps and barrier-free access prevents them from getting around independently.
Barrier-free zones are defined as areas within a 400-metre radius of all MRT and LRT stations.
The S$60 million barrier-free upgrading works are expected to be completed over the next five years.