BYD, Zhongtong electric buses to be modified over step height complaints

Singapore’s newest electric buses will soon undergo modifications, following passenger complaints about high steps and raised seating areas.

According to a Shin Min Daily News article (2 Oct 2025), the changes come after complaints from elderly commuters about high steps and raised seating areas. Modifications will be carried out from October 2025.


Passenger Complaints

Passengers interviewed by Shin Min agreed that priority seats on the new buses are hard to access. Many are installed on raised platforms, requiring a tall step that can be difficult for seniors or those carrying items. In one case, a commuter said they saw an elderly man nearly fall while stepping down. The same interviewee observed that some elderly riders simply choose to stand rather than climb onto the raised seats.

The buses in question

The models affected are the BYD BC12A04 and Zhongtong LCK6126EVG. A total of 420 units—300 from BYD and 120 from Zhongtong—were procured by the Land Transport Authority (LTA) in 2023.

Inside, each bus has 12 priority seats in the front section. While four are on the flat floor level, the remaining eight sit above the front wheel wells, requiring passengers to climb a high step.

In the rear section, where another 4 priority seats are located after the middle door, steps can be as tall as 33 cm due to the sloping floor. For comparison, older low-entry buses such as the Scania K230UB and staircases on double-deckers, generally do not exceed 23 cm.

LTA’s response

An LTA spokesperson explained that the raised steps are a result of the buses’ fully low-floor design. To keep the passenger cabin step-free, manufacturers place components such as wheel wells and batteries under the floor, which makes some seating platforms higher.

To address commuter concerns, LTA confirmed that modifications will start in October 2025. The goal is to ensure steps do not exceed 23 cm, in line with current bus designs. This will be done by raising the floorboard height, and in the long term, by improving battery density so smaller batteries can be used.

These adjustments represent a significant redesign for buses already in mass production. Still, the move highlights a willingness to adapt to passenger feedback—especially from seniors who rely on public transport.


Where these buses are deployed

As of October 2025, these electric buses are currently deployed out of the following depots:

In response to press enquiries, the LTA said that about 170 of the 420 electric buses are already on the roads, with the rest expected to enter service by the end of the year.


Interior

External Links & References
The post BYD, Zhongtong electric buses to be modified over step height complaints first appeared on Land Transport Guru.
This is a companion discussion topic for the original entry at https://landtransportguru.net/step-height-modification-byd-zhongtong-ebus/