Previously on Page 1:
- Introduction & Background
- Technical Specifications
- Exterior Overview
- Interior Overview
- Driver’s Compartment
USB Charging Ports
The bus is equipped with USB charging ports for all seats on the side panels of the bus (except foldable seats). A single charging port has room for two USB cables.
Passenger Information Display System (PIDS)
New LTA specifications demand the provision of Passenger Information Display Systems (PIDS) for commuters. One interior-facing LCD display panel is mounted above the centre aisle, near the exit door of the bus. A second, exterior-facing panel is placed near the entrance door, next to an Electronic Display that shows the bus route number, current time, destination, and the next few MRT stations that the bus serves. However, no en-route MRT connections are shown on Bus Service 272, which does not serve any MRT stations.
Accompanying the LCD screens are two additional Orange LED Text Displays which shows the service number, destination, and name of the next bus stop. They are mounted at the front and rear of the bus. In particular, the rear unit is fitted for the convenience of passengers sitting in rear-facing seats. All PIDS display screens are supplied by Luminator Technology Group.
All PIDS units also indicate when the bus stop call button is pressed. These are in addition to a bus stopping indicator that lights up when the bell is pressed (installed behind the driver’s cab).
Wheelchair accessibility is offered via a manual wheelchair ramp installed at the rear door. New LTA specifications also call for two wheelchair bays on new buses in line with providing for an ageing population. They also offer more standing space, as well as room for unfolded prams.
One wheelchair bay is located opposite the exit door (“right-side:), and the other just forward of the exit door (“left-side”). Each bay accommodates one passenger-in-wheelchair (PIW), and the wheelchair backrest contains a foldable seat (with retractable seatbelt) that doubles as a rear-facing seat. These seats do not contribute to the licensed seating capacity of the bus.
Both wheelchair bays offer buckle straps, but only the right-side wheelchair bay is fitted with a stroller restraint system. Blue PIW stop request buttons are mounted on the side wall.
Collision Avoidance System
While typical newer buses in Singapore are retrofitted with Advanced Driver Assistance Systems (ADAS), the Citaro hybrid is factory-fitted with the Sideguard Assist and Preventive Brake Assist systems, both of which are offered as options by Mercedes-Benz.
Sideguard Assist is a blind-spot monitoring system on the left side of the bus, consisting of an externally-mounted radar unit and a driver indicator (triangular LED) mounted on the A-pillar. If a moving object is in the monitoring zone to the side of the vehicle, a triangular-shaped yellow LED light turns on. If the driver initiates or continues an action that could lead to a collision, an additional visual warning takes place: the LED light flashes red with high brightness and then remains on permanently. The system is also able to issue a vibration warning to the driver’s seat, but it is not known if this feature is activated.
In addition, Preventive Brake Assist warns of a potential collision with moving pedestrians as well as stationary or moving objects and automatically initiates a braking manoeuvre with partial braking in the event of an acute collision hazard. This is held until either the driver intervenes or the bus comes to a stop. Warning cascade and braking intervention are designed for use in city traffic.
The PVC floorboard (Tarabus Gaya Wood Walnut – 4521 Yellowstone) mimics the appearance of wood. Other buses typically use plain colours or mosaic patterns for the floorboard.
An automatic passenger counter (iris IRMA MATRIX) is installed above the front and rear doors. As a new specification required by the Land Transport Authority (LTA), this feature enables the gathering of more accurate passenger loading data.
Photo Source: MANBSP Facebook (31 Aug 2019)
Photo Source: Storm⚡️Fire (Transportation)
External Links & References:
- World premiere: Mercedes-Benz Citaro hybrid – the hybrid bus that pays for itself – Daimler (Accessed 26 Sep 2020)
- The Citaro hybrid. The Benchmark. (Brochure) – Mercedes-Benz (Accessed 26 Sep 2020)
- The Citaro right-hand drives. The Benchmark. (Brochure) – Mercedes-Benz (Accessed 26 Sep 2020)
- Citaro – Technical Information at a glance – Mercedes-Benz (Accessed 26 Sep 2020)
- BlueEFFICIENCY Power Euro VI Engines – Mercedes-Benz (Accessed 26 Sep 2020)
- MANY DAIMLER PREMIERES AT BUSWORLD EUROPE 2017 – Busworld (Accessed 26 Sep 2020)
- Road Traffic (Authorisation of Use) Notification 2020 – Singapore Statuses Online (Accessed 26 Sep 2020)
- Safe driving – Mercedes-Benz Citaro – Mercedes-Benz (Accessed 26 Sep 2020)