|MAN NL323F (Euro 6) – First Production Batch|
|Manufacturer||MAN Truck And Bus|
|Bodywork||MAN Lion’s City (Gemilang Coachworks)|
|Years in operation||2018- Present|
|Engine||MAN D2066 LUH-51|
|Transmission||ZF EcoLife 6 AP 2000 B|
|Accessibility||Low Floor & Wheelchair-accessible|
|Emission Standard||Euro VI (EGR+SCR)|
As part of the Bus Contracting Model, the Land Transport Authority (LTA) has initiated further purchases of MAN NL323F (or MAN A22) buses. These are the fourth batch of MAN A22 buses to be built for the Singapore market.
These buses are Euro-VI compliant and are bodied by Gemilang Coachworks with the MAN Lion’s City bodywork. Also in compliance with new LTA specifications, buses are equipped with a suite of new features, such as Passenger Information Display Systems (PIDS) and two wheelchair bays.
Singapore adopted the Euro 6 (or Euro VI) standards for all new diesel vehicles registered in Singapore from 1 January 2018, representing the latest in emission standards. As such, new buses which were registered from 2018 had to comply with the more stringent emission standards.
In late June 2018, SG1752U – SG1755L were leased to SMRT Buses and are expected to make their revenue service debut in July 2018.
|Basic Technical Specifications|
|Engine||MAN D2066 LUH-51, 10518cc
Twin-stage turbocharged & inter-cooled
Power/torque rating of 320 hp (235 kW) @ 1900 rpm / 1600 Nm @ 1000 – 1400 rpm
|Emission Standard||Euro VI-compliant
MAN PURE DIESEL® Exhaust Gas Recirculation (EGR) process and MAN SCRT Selective Catalytic Reduction (SCR) exhaust after-treatment process, hence requiring diesel exhaust fluids such as AdBlue. Meets the latest Euro VI emission standard.
|Transmission||ZF EcoLife 6 AP 2000 B gearbox, six-speed automatic|
|Bodywork||MAN Lion’s City Bodywork
Chassis built in Germany, MAN’s Lion City bodywork supplied and assembled by Gemilang Coachworks, licensed by MAN.
|EDS||Gorba imotion LED.e TOPSMART Electronic Display Sign (EDS)
Connected to a Gorba imotion CU8 controller
|PIDS||Gorba imotion TFT.slave Passenger Information Display System (PIDS)
One interior-facing unit, one exterior-facing unit
Interior & Exterior Speakers
|Additional Specifications||Masats door systems
Denso LD8u roof-mounted air-conditioning unit
Seeing Machines Guardian Driver Anti-Fatigue System
Passenger counters at entrance and exit doors
USB Charging Ports (with covers)
Vogelsitze System 750/3 seats
Door movement area sticker
|Licensed Capacity||Seating: 33 | Standing: 53 = 86 total
Not including 2 foldable seats, 2 wheelchair bays
These MAN NL323F buses are procured through a negotiated contract between the Land Transport Authority (LTA) and Singapore Technologies Kinetics Ltd (ST Kinetics), the authorised local dealer for MAN Trucks & Buses.
Since the start of the Bus Contracting Model (BCM), the LTA has assumed responsibility for the procurement of buses. Apart from Open tenders, the LTA previously purchased buses under negotiated contracts, such as 100 Mercedes-Benz Citaro buses, 176 Volvo B9TL buses, and 122 MAN A95 buses.
New requirements imposed by the LTA for new buses include an enhanced Passenger Information Display System (PIDS) comprising LED text displays, LCD display screens and interior speakers. In addition, an exterior-facing display screen and an external speaker is included. An Advanced Driver Assistance System (ADAS) (TBC), driver fatigue detection system, high-definition CCTV cameras, and passenger counters at entrance and exit doors of the bus are just some of the additional specifications required by LTA.
The exterior styling of the bus bears a mix of styling elements from previous and concurrently-produced batches of MAN A95 buses, such as the large grey stripe on both sides of the bus, and a large headlamp design likely inspired from MAN Trucks. The front bumper design, identical to that used on Euro 6 MAN A95 buses, have the fog lights removed.
These buses are bodied by Gemilang Coachworks of the MAN Lion’s City bodywork, likely licensed by MAN. However, unlike integral units of the MAN Lion’s City which have a distinctive design, the local units bear bodywork elements heavily borrowed from the MAN NL323F buses previously procured for the local market. Furthermore, these buses do away with the curved roof attachment of the Lion’s City Hybrid specification (fitted entirely for aesthetic purposes), which had thus far been synonymous with the MAN NL323F model locally.
The lower deck of the bus features 33 permanent seats. Being a low-floor bus, the bus offers step-free access from entry/exit doors until the last row of seats.
Like most single-deck buses in Singapore, the MAN NL323F (Euro 6) buses are configured with two doors: an entrance door at the front, and an exit door in the middle. The entrance doors are conventional inward-swinging leaf doors, while the exit doors are outward-swinging sliding plug doors. They are supplied by Masats S.A. of Spain.
Seats were supplied by Vogel Industries of Malaysia (Model: System 750/3) in sky blue and grey, with priority seats in red. The front wheel arch seats, however, are formed with fabric laid down directly onto moulded bodywork panels. The seat covers are made of a high-friction PVC material that offers greater seating comfort over older bus seats.
As part of new LTA requirements, the bus features two wheelchair bays, both located opposite the exit door. They each accommodate one passenger-in-wheelchair (PIW), and are not equipped with USB charging ports. Seatbelts or other forms of restraint devices for wheelchairs or prams have yet to be installed.
Priority seats, which are indicated in red seat covers, occupy two rows of seats just ahead of the exit door.
Grab poles and hand grips are located on both sides of the aisle. All seats also have hand grips to provide commuters with additional support. Metal stanchion poles and handlebars, formerly finished with a smooth reflective coat, now bear a brushed metal finish similar to that earlier used on the 3-door MAN Lion’s City SD Concept Bus.
Bus stopping bell-pushes are located around the bus cabin, either mounted to stanchion poles or on the pillars in-between windows. Emergency hammers are also located on these pillars.
To accommodate the larger size of underfloor components (likely the MAN SCRT system), the seating area behind the left rear wheel is raised, similar to that of Mercedes-Benz Citaro buses.
The layout of the driver’s compartment is similar to previous batches of MAN NL323F buses, with an updated steering wheel design. The yellow fare collection box has also been replaced with a turquoise one.
The turquoise display unit on the bottom left is the New On-board Bus Equipment (NOBE) fare collection system controller. To the right of the NOBE is the Trapeze Common Fleet Management System (CFMS) display unit. The gear selector, door controls and the handbrake lever are located on the right of the driver. A CCTV monitor, located above the driver, assists with monitoring of the surroundings. Air-conditioning and Electronic Display Sign (EDS) controllers are co-located with the CCTV monitor above the driver.
Also new to the MAN NL323F (Euro 6) buses is the Driver Anti-Fatigue System as a requirement, with the camera unit and infrared illuminator installed on the top right of the dashboard. The unit is supplied by Seeing Machines.
USB Charging Ports
The bus is equipped with USB charging ports (with covers) for all seats, but not for the two wheelchair bays and their foldable seats. A single charging port has room for two USB cables, with an output of 1A and 2.1A.
The charging ports are located in the middle of every pair of seats for the benefit of both seat users. Previously, USB charging ports were mounted along the side panels of the bus, resulting in inconvenience for commuters in aisle seats wanting to use the charging port. For the pair of wheel arch seats located above the front axle, charging ports are located on the side.
Passenger Information Display System (PIDS)
New LTA specifications demand the provision of Passenger Information Display Systems (PIDS) for commuters. One roof-mounted interior 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.
On the first day of revenue service, all PIDS panels were non-operational.
In addition, the interior of the bus also features two LED Text Display which has yet to be configured properly but intended for showing the name of the next bus stop. They are mounted at the front and rear of the bus.
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.
Both wheelchair bays are located opposite the exit door. They each accommodate one passenger-in-wheelchair (PIW). Bus stopping bells are located on the adjacent grab poles. However, USB charging ports are not provided at the wheelchair bay.
A unique feature of these buses is the aisle-facing foldable handlebar at each wheelchair bay, for the benefit of PIWs. It can be manually deployed and stowed depending on the needs of the passenger.
The handlebar position is changed manually by releasing the indexing plunger, and then pulling/pushing and rotating the handlebar into to its desired position before locking it in place. The slightly cumbersome design relies on users to locate the locking holes drilled into the metal pole before the handlebar can be locked. The handlebar also comes with a stop request button.
Each wheelchair backrest contains a foldable seat that doubles as a rear-facing seat for one person. These seats do not contribute to the licensed carrying capacity of the bus.
An automatic passenger counter is installed above the front and rear doors. Also a new specification required by the Land Transport Authority (LTA), this feature enables the gathering of more accurate passenger loading data.
Other Euro 6 Public Buses
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