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S'pore to replace all 11,500 pedestrian push buttons with touchless sensors by 2031
Many use the mechanical button at pedestrian crossings as a stress reliever.
October 21, 2024, 09:57 AM
The Land Transport Authority (LTA) will replace all mechanical pedestrian push buttons with touchless sensors over the next six years, starting from the fourth quarter of 2025.
The new sensors will detect hand movements using electromagnetic waves, The Straits Times reported.
It is estimated to take six years to replace all of the mechanical buttons as there are a total of 11,500 push buttons at the roughly 2,790 traffic junctions across Singapore.
LTA said the change is aimed at reducing touch points and improving hygiene.
Trials were conducted in 2022 and 2023.
How sensors work
LTA tested two types of sensors: An infrared sensor and a different one that uses microwaves.
LTA chose the one that uses microwaves as it could detect hand movements better in varying weather conditions.
The microwave sensors detect hand movements by emitting electromagnetic waves and relying on changes in the frequency of the waves reflected into the device.
The infrared sensors rely on changes in light.
A pedestrian’s intention to cross the road is registered, and a sound will be emitted.
Braille text will be embedded on the exterior of the devices to assist the visually impaired.
Mechanical buttons last 15 to 20 years and require maintenance as they get older.
The installation of the new sensors will be done as part of a larger contract for the maintenance and installation of traffic light systems.
Responses
Reactions to the news of the change were mixed.
Those who preferred mechanical buttons felt that they served as stress relievers for pedestrians, while others said they would rather press than wave their hands as the tactile nature of physical buttons provided clear feedback that their intention was registered with the device.
Those who preferred sensors noted that they are becoming more widespread and are increasingly used in many other places, such as lifts and access doors.
Top photos via Beh Chia Lor Facebook & Traffic Light Collection99 YouTube
