Volvo B9TL

Volvo B9TL

SBS Transit Volvo B9TL Wright

Other names B9, CDGE, Wright
Manufacturer Volvo Buses
Bodywork ComfortDelGro Engineering
Wrightbus Limited
Gemilang Coachworks
Year 2006, 2010 —
Local Operators SBS Transit
Future GCM route package operators
Technical Data
Length 12m
Width 2.52m
Entry Low Entry / Low Floor
Engine Volvo D9A300 EM-EC01
Volvo D9B310 EC06B
Gearbox Voith DIWA 864.3
Voith DIWA 864.5
ZF Ecomat 6HP 602
ZF EcoLife 6AP 1410B
Emission Standard Euro III / V (SCR)

WeHaveMoved1

The Volvo B9TL (Bus chassis, 9-litre Transverse-mounted engine, Low floor) is a rear-engined low-floor double-decker transit bus built by Volvo Buses since 2002. It is the successor to the older Volvo B10TL “Super Olympian” and the Volvo B7TL. The bus is popular in the United Kingdom, Hong Kong and Singapore.

SBS Transit is the main operator of the Volvo B9TL in Singapore, operating over 1500 units as its main double-decker bus model. In the later part of 2016, Tower Transit and Go-Ahead Group, the successful tenderers of the Bulim and Loyang Bus Packages respectively, will operate Volvo B9TL buses procured under the Government Contracting Model (GCM).

In 2006, the first 200 units of the Volvo B9TL (Euro III) was brought in by SBS Transit, bodied locally by ComfortDelgro Engineering. In 2010, Volvo B9TL (Euro V) buses with Wright Eclipse Gemini II bodywork were brought in. Additional orders were made in the subsequent years, bringing up to a grand total of 1430 Wright-bodied buses.

One demonstrator unit bodied by Gemilang Coachworks Malaysia was also delivered in 2014 and registered as SBS7777Y.

Design:

The Volvo B9TL chassis was designed based on the existing Volvo B7TL. A key difference from its B7TL and B10TL predecessors is its new 9.3-liter engine originally designed by Renault Trucks. The larger engine delivers more horsepower, an advantage over the Volvo B10TL which was notorious for its poor performance on steep ascents. Another major design change over the B10TL was the relocation of the water tank from the front of the bus (near the right front wheel) to the rear, next to engine components.

The B9TL was initially offered only in a 12-meter 3-axle format. The 2-axle variant was introduced in 2006 to fully replace the B7TL, with various chassis lengths available (10.3m, 10.4m and 10.6m).

The driveline comprises a Euro III-compliant Volvo D9A engine (rated at 300 or 340 horsepower), which was later replaced by the Euro V-compliant Volvo D9B engine, which relies on Selective Catalytic Reduction (SCR) technology, requiring diesel additive fluids such as AdBlue. Two versions were offered – the D9B260 rated at 260-horsepower for the 2-axle version, and a higher powered D9B310, rated at 310-horsepower, for the 3-axle version. Transmission options include a ZF 5/6-speed gearbox or a  Voith 4-speed gearbox. Wheel rims are typically supplied by Alcoa.

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Volvo B9TL (Euro III) – ComfortDelGro bodywork

SBS Transit Prototype WAB B9TL

In late 2004, SBS Transit placed orders for 150 Euro III Volvo B9TL chassis at a cost of S$71 million on 28 December 2004, with an option for 50 more units. They were bodied by ComfortDelGro Engineering (CDGE), the engineering branch of SBS Transit’s parent company ComfortDelGro. A trial bodywork had previously been tested on a Volvo B10TL (SBS9889U), developed by SBS in cooperation with PSV International. The new bodywork was ready to be refitted for use on the Volvo B9TL.

On 15 February 2006, a prototype bus was unveiled, a Volvo B9TL with a zero-step entrance, a manual wheelchair ramp and other wheelchair-friendly features. As Singapore’s first Wheelchair-Accessible Bus (WAB), they were going to pave the way for more WABs and a more disabled-friendly transport system. The launch date was delayed from April to June to prepare bus stops for wheelchair boarding and alighting activities. Finally, on 27 June 2006, SBS Transit Service 21 became the first wheelchair-accessible bus service with 10 Volvo B9TL CDGEs in its fleet.

Volvo B9TL debuts on Service 21

Later in 2006, SBS Transit exercised its options for an additional 50 more buses at a cost of S$29 million, soon after putting its first B9TLs into operation, bringing the total fleet size to 200. These B9TLs come with the same Euro III-compliant Volvo D9A300 engine, but a four-speed Voith gearbox instead of the six-speed ZF. All units were registered just days before the government-set deadline for Euro-IV compliant diesel engines. Volvo B9TL CDGE units were registered from SBS7300P to SBS7499A.

Basic Specifications:

  • Volvo D9A300 EM-EC01 engine
    – Turbocharged & intercooled, Inline 6-cylinder, 9364cc,
    – 300 hp (220 kW) @ 1900 rpm, torque rating of 1400 Nm @ 1100 – 1400 rpm
    – Euro III-compliant
  • ZF Ecomat 6HP 602 gearbox (149 units) – Six-speed automatic
  • Voith DIWA 864.3 gearbox (50 units) – Four-speed automatic
  • ZF EcoLife 6AP 1410B gearbox (1 unit) – Six-speed automatic
  • ComfortDelGro Engineering Bodywork
    Bodywork designed, supplied and assembled locally by ComfortDelGro Engineering (CDGE), SBS Transit’s engineering branch.
  • LECIP Electronic Display Signages (EDS)
    Orange LED matrix design, installed in 2011
  • Denso air-conditioning, rear-mounted

Unlike most SBS (or CDGE) assembled buses which have their bodywork kits shipped in completely knocked down (CKD) form, CDGE bodied these buses themselves from the chassis up, hence these buses were fully constructed in Singapore. The Government had subsidized the cost of fitting the bus with wheelchair-friendly features, such as the manually operated wheelchair ramps. Each bus has one wheelchair bay.

The Volvo B9TL CDGE has a licensed passenger capacity of 124 passengers, consisting of 53 upper deck seating, 27 lower deck seating and 44 standing passengers. An interesting feature at the upper deck are two rows of three longitudinal aisle-facing seats, located in front of the rearmost row of seats.

The bus was also equipped with safety features such as throttle interlocking, which prevents the bus from moving off when doors are opened. Doors will not open above 5kmh nor close if the wheelchair ramp is still deployed. Additional blinkers on the offside of the bus makes the bus more visible to oncoming traffic as it exits a bus bay.

On 7 March 2010, SBS7440T from service 25 was burnt beyond repair in a fire at Ang Mo Kio Bus Depot. It was de-registered several months later, making it the first Volvo B9TL in Singapore to be deregistered.

Additional features:

Volvo B9TL CDGE fitted with LECIP EDS

In 2011, SBS Transit replaced the traditional plastic destos with Electronic Display Signages (EDS) by LECIP on their Volvo B9TL CDGEs. SBS7392Z was the first bus to receive it, and all other CDGE B9TLs followed suit. The upgrade consists of three sets of electronic displays, for the front, side and rear of the bus. The new LECIP EDSes had route numbers that were considerably smaller and difficult to see clearly from a distance, but eventually accepted by many commuters.

Bus Transmissions:

SBS7321D had its ZF 6HP602 gearbox replaced with a ZF EcoLife 6AP 1410B gearbox for reasons unknown. The same make of gearbox is fitted to ZF Volvo B9TL Wrights .

Volvo B9TL CDGE transmission
ZF Ecomat 6HP 602 SBS7300P – SBS7341X, SBS7347E – SBS7402D, SBS7448Y – SBS7499A, excluding SBS7321D
Voith DIWA 864.3 SBS7342T – SBS7346H, SBS7403B – SBS7447A
ZF EcoLife 6AP 1410B SBS7321D

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SBS Transit Volvo B9TL (Euro V) – Wright Eclipse Gemini II bodywork

The Volvo B9TL Wright is the most common double-decker bus model in Singapore. With over a thousand units on the road, these omnipresent buses with their rounded front appearance make them synonymous with SBS Transit. These buses were introduced into service through different batches.

Here, we lay down the differences between each batch for the subsequent article.

Batch Specs Units Description
1 150 buses

Low Entry

ZF Ecolife

150 SBS7500D – SBS7686B
2 300 buses

Low Entry / Low Floor

Voith

30 Low Entry, SBS7700T – SBS7729L
240 Low Floor, SBS3000G – SBS3238M, SBS3269Z
30 Purchased under BSEP, Low Floor, SBS3300R – SBS3329J
3 565 buses

Low Floor

Voith

446 SBS3240E – SBS3268B, SBS3270T – SBS3299L, SBS3600A – SBS3986L
119 Purchased under BSEP

SBS3330D – SBS3448Z

4 415 buses

Low Floor

ZF Ecolife

TBC May be transferred to GCM

SBS1Z – ?

TBC SBS3449X – ?
284 SG5000E – ?

Construction

Just like the Euro III Volvo B9TL (CDGE) buses, SBS Transit undertook the task of assembling these buses locally from the chassis up. Bodywork components in complete knock-down (CKD) form were shipped from Wrightbus, based in Ballymena, Northern Ireland. At the bus assembly facility in Hougang Depot run by Comfort DelGro Engineering (SBS Transit’s technical counterpart), buses are assembled and tested before being registered and put into service island-wide.

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SBS Transit Volvo B9TL Wright (Euro V) – Batch 1

In August 2009, SBS Transit placed orders for 150 Volvo B9TL chassis as part of a S$87 million fleet renewal programme, This time, they opted for the environmentally friendly Volvo D9B310 engine, which met stringent Euro V emission standards. They were to be built with the Wright Eclipse Gemini II (WEG2) bodywork produced by Wrightbus of Northern Ireland.

The Volvo B9TL Wright had previously been popular with bus operators in Hong Kong and the United Kingdom, with a good reputation for reliability and compliance with emission standards. The buses would be registered between 13 Sep 2010 to 26 Aug 2011, using the registration numbers SBS7500D – SBS7686B, excluding registration numbers containing the number “4” in the third and fourth digit.

Prototype Unit (SBS7500D)

SBS7500D, assembled in UK

SBS7500D, the Volvo B9TL Wright prototype, was assembled by Wrightbus in Northern Ireland and shipped completely-built-up (CBU) to Singapore, where it was used as a reference unit for the local assembly of other WEG2 kits.

With Hong Kong bus operators being major customers of the Volvo B9TL Wright, minor Hong Kong specifications were carried over to the SBST prototype, intentionally or by accident. An opaque sticker was placed over the upper deck window, where a TV screen would have been installed. Also, a rectangular depression was cut out at the rear, where HK buses would have fixed their registration plates. Finally, the interior flooring differs from other Wrights. Minor differences aside, technical specifications of SBS7500D were identical to the rest of Batch One Volvo B9TL Wrights.

Production Batch (SBS7501B – SBS7686B)

The first batch (Batch 1) of Volvo B9TL Wrights were built by Comfort DelGro Engineering (CDGE)’s bus assembly facility in Hougang Depot, which would continue to assemble all future Volvo B9TL buses for SBS Transit.

The first batch of B9TL Wright chassis were low-entry, meaning that the bus offered stepless entry between the front and rear exit doors, with an additional step before the lower deck rear seating area. They were also paired with six-speed ZF EcoLife transmissions; subsequent batches of Volvo B9TLs would all use four-speed Voith DIWAs. Although the ZF offers smoother acceleration and performs better at highway speeds, the Voith offers faster initial pickup and hill-climbing abilities with less gear changes (and some say lower service intervals too).

SBS Transit Volvo B9TL Wright – Nearside

Volvo B9TL Wright – Offside

Basic Specifications:

  • Volvo D9B310 EC06B engine
    – Turbocharged & intercooled, 9364cc
    – 310 hp (228 kW) @ 1900 rpm
    – Torque rating of 1400 Nm @ 1100 – 1500 rpm
  • Euro V compliant
    Selective Catalytic Reduction (SCR) technology requiring diesel exhaust fluids such as AdBlue.
  • ZF EcoLife 6AP 1410B gearbox
    Six-speed automatic
  • Wright Eclipse Gemini II Bodywork
    Body kits supplied by Wrightbus of United Kingdom in CKD (complete knock-down) form, assembled locally by SBS Transit’s technical counterpart, ComfortDelgro Engineering
  • Hanover Electronic Display Signages (EDS)
    Orange LED matrix design.
  • Carrier Sutrak air-conditioning, rear-mounted

Additional Specifications:

The low-entry Batch 2 Volvo B9TL Wright has a licensed capacity for 131 passengers, comprising 55 upper deck seating, 27 lower deck seating and 49 standing passengers, with a single wheelchair bay. Safety features include electronically-controlled air suspension, automatic brakes (when doors are open), anti-lock braking system (ABS) and traction control.

Many buses were modified with a rear cooling fan on the engine cover to help dissipate heat from the engine.

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SBS Transit Volvo B9TL Wright (Euro V) – Batch 2

In August 2009, SBS Transit placed further orders for 300 more Euro V Volvo B9TL chassis, and the similar WEG2 bodywork supplied by Wrightbus. As part of a fleet renewal programme inclusive of 300 Mercedes-Benz Citaros, the orders were valued at S$268 million.

The Batch 2 is unique in that buses were delivered in two different specifications. The first 30 buses were built on low entry chassis (similar to Batch 1), but the orders were changed midway through delivery in favour of the low-floor option, which offered step-less access from front door to rear. The remaining 270 buses were but to low-floor specifications, but all other technical aspects between the low-entry and low-floor buses were similar.

Additionally, SBS Transit opted for a four-speed Voith DIWA transmission over the six-speed ZF EcoLife transmission used for the previous batch of Volvo B9TLs.

Production Batch 2 (Low-Entry specification) (SBS7700T – SBS7729L)

The first 30 buses of the Batch 2 B9TLs were built to similar interior configurations as the Batch 1 buses, and these were registered between 21 Sep 2011 and 30 Dec 2011, using the registration numbers SBS7700T – SBS7729L.

Volvo B9TL Wright – Batch 2 (LE)

Basic Specifications:

  • Volvo D9B310 EC06B engine
    – Turbocharged & intercooled, 9364cc
    – 310 hp (228 kW) @ 1900 rpm
    – Torque rating of 1400 Nm @ 1100 – 1500 rpm
  • Euro-V compliant
    Selective Catalytic Reduction (SCR) technology requiring diesel exhaust fluids such as AdBlue.
  • Voith DIWA 864.5 gearbox
    Four-speed automatic
  • Wright Eclipse Gemini II Bodywork
    Body kits supplied by Wrightbus of United Kingdom in CKD (complete knock-down) form, assembled locally by SBS Transit’s technical counterpart, ComfortDelgro Engineering
  • Hanover Electronic Display Signages (EDS)
    Orange LED matrix design.
  • Carrier Sutrak air-conditioning, rear-mounted

The only technical difference between Batch 1 and Batch 2 Wrights is the Voith DIWA 864.5 gearbox in place of the ZF EcoLife 6AP 1410B gearbox. The low-entry chassis meant that there was a step on the lower deck between the exit door and the lower deck seating. From Batch 2 onwards, chassis were of the low-floor version.

Although very similar, the lower deck interior flooring has slight modifications as compared to the Batch 1 to accommodate more equipment.

Additional Specifications:

Similar to Batch 1 Wrights, Batch 2 Wrights have a licensed capacity for 131 passengers, comprising 55 upper deck seating, 27 lower deck seating and 49 standing passengers, with a single wheelchair bay. Step free access applies from entry to exit door. Safety features include electronically-controlled air suspension, automatic brakes (when doors are open), anti-lock braking system (ABS) and traction control.

Many buses were modified with a rear cooling fan on the engine cover to help dissipate heat from the engine.

Production Batch 2 (Low-Floor specification) (SBS3000G – SBS3238M & SBS3269Z)

The remaining 270 Batch 2 Volvo B9TL buses differed from the first 30 after chassis specifications were changed to a fully-low-floor design, featuring zero-step access from the entrance to the rear row of seats. Technical specifications, however, are exactly identical.

However midway through deliveries and registration, 30 buses of this batch were reallocated to the then-newly-launched Bus Service Enhancement Programme (BSEP), for deployment on new BSEP routes, as well as the service enhancement of existing routes. This left 240 units in the batch. More details about BSEP buses can be found at the link to the BSEP article.

The Batch 2 B9TL Wrights of low-floor specification were registered between 22 Nov 2011 – 28 Dec 2012, using the registration numbers SBS3000G – SBS3238M and SBS3269Z. They bore LECIP Electronic Display Signages (EDS) in place of Hanover units used on the Batch 1 and low-entry Batch 2 Wrights.

Volvo B9TL – Batch 2 (LF, offside)

Volvo B9TL – Batch 2 (LF, nearside)

Basic Specifications:

  • Volvo D9B310 EC06B engine
    – Turbocharged & intercooled, 9364cc
    – 310 hp (228 kW) @ 1900 rpm
    – Torque rating of 1400 Nm @ 1100 – 1500 rpm
  • Euro-V compliant
    Selective Catalytic Reduction (SCR) technology requiring diesel exhaust fluids such as AdBlue.
  • Voith DIWA 864.5 gearbox
    Four-speed automatic
  • Wright Eclipse Gemini II Bodywork
    Body kits supplied by Wrightbus of United Kingdom in CKD (complete knock-down) form, assembled locally by SBS Transit’s technical counterpart, ComfortDelgro Engineering
  • LECIP or Hanover Electronic Display Signages (EDS)
    Orange LED matrix design.
  • Carrier Sutrak air-conditioning, rear-mounted

With the new fully-low-floor chassis, the interior configuration was modified. Four of the original side-facing seats were converted into two sets of forward facing seats located behind the exit door. A larger Electronic Display Signage (EDS) was installed on the nearside of the bus. Licensed carrying capacity increased from 131 to 133 passengers, comprising 55 upper deck seating, 27 lower deck seating, 51 standing passengers and a single wheelchair bay.

Many buses were modified with a rear cooling fan on the engine cover to help dissipate heat from the engine.

SBS3189X was fitted with a Hanover EDS.

BSEP Units (SBS3300R – SBS3329J)

The BSEP covers of all Volvo B9TL Wrights that are under the Bus Services Enhancement Programmed (BSEP). Purchase of these buses are fully paid for by the Government, and operational costs such as salaries for drivers, fuel and maintenance of these buses for the next 10 years from initial registration are also covered by the Government.

The very first batch of SBS Transit BSEP Buses were in fact, incoming new buses being drawn out from existing bus deliveries and registered under the BSEP scheme (covering of acquisition costs likely to be paid to the operator at a later date). Built to the low-floor specification, these first 30 BSEP buses shared identical specs as Batch 2 buses. They were registered between 13 Sep 2012 and 3 Dec 2012 as SBS3300R – SBS3329J.

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SBS Transit Volvo B9TL Wright (Euro V) – Batch 3

In July 2012, SBS Transit announced its decision to order 550 units of Euro V Volvo B9TLs with the WEG2 bodywork, identical to the low-floor Batch 2 units, for fleet expansion and renewal. Combined with a further 450 more Mercedes-Benz Citaros, the order for 1000 buses was valued at S$433 million.

These 550 Volvo B9TL Wrights would fall under the Batch 3 and be divided into the regular Production batch and the Government-funded BSEP batch. However, for reasons unknown, the final Batch 3 bus count was increased to 565 buses. This comprised 446 Batch 3 buses and 119 BSEP Batch 2 buses

All of these buses were identical in specification to low-floor Batch 2 buses, but a mix of Electronic Display Signage (EDS) models. Earlier buses of this batch used LECIP EDS units, while later buses used Hanover EDS units.

Production Batch 3 (SBS3240E – SBS3299L & SBS3600A – SBS3986L, excluding SBS3269Z)

Volvo B9TL buses of the Batch 3 make (446 units) were identical in all specifications to low-floor Batch 2 units. They were registered between 30 Jan 2013 and 18 June 2015 as SBS3240E – SBS3299L and SBS3600A – SBS3986L, excluding SBS3269Z which is a low-floor Batch 2 bus.

Additional Specifications:

  • Buses registered SBS3761T to SBS3986L were equipped with Hanover EDS units. The remaining majority have LECIP EDS units.
  • SMB3921Z has doors made by Ventura Systems, including a sliding plus rear door similar to those fitted to Enviro500 buses. It replaces swinging plug doors by SMC Transit found on most other Volvo B9TLs and Scania K230UBs.
  • SBS3971D (YV3S4P928FA171321) is the 1,000th B9TL Wright delivered to SBS Transit.
  • Several buses have been fitted with Mobileye 560 for driver guidance and enhanced road safety

BSEP Batch 2 (SBS3330D – SBS3448Z)

The BSEP Batch (119 units) comprises of all Volvo B9TL Wrights that are under the Bus Services Enhancement Programmed (BSEP). Purchase of these buses are fully paid for by the Government, and operational costs such as salaries for drivers, fuel and maintenance of these buses for the next 10 years from initial registration are also covered by the Government.

Acquired as part of Batch 3, these 119 BSEP buses shared identical specs as low-floor Batch 2 buses. They were registered between 1 Feb 2013 and 1 Dec 2014 as SBS3330D – SBS3448Z.

Additional Specifications:

  • Buses registered SBS3385X to SBS3448Z were equipped with Hanover EDS units, not LECIP units
  • Several buses have been fitted with Volvo Bus I-Coaching equipment for driver guidance and enhanced road safety

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SBS Transit Volvo B9TL Wright (Euro V) – Batch 4

In July 2014, SBS Transit announced orders worth S$311 million for 250 Mercedes-Benz Citaro buses and 415 Volvo B9TL Wright buses, a total of which 296 will be funded by the Government under the Bus Service Enhancement Programme (BSEP). These 415 Volvo B9TLs fall under the Batch 4, scheduled for delivery from mid-2015.

Production Batch 4 (SBS1Z onwards)

The Production Batch 4 Volvo B9TL buses featured modifications to both technical specifications and interior configuration of the bus, as compared to the low-floor Production Batches 2 and 3 which have been previously produced in large numbers.

The Batch 4 B9TL Wrights were registered from 13 Aug 2015, using the registration numbers SBS1Z and onwards.

Basic Specifications:

  • Volvo D9B310 EC06B engine
    – Turbocharged & intercooled, 9364cc
    – 310 hp (228 kW) @ 1900 rpm
    – Torque rating of 1400 Nm @ 1100 – 1500 rpm
  • Euro-V compliant
    Selective Catalytic Reduction (SCR) technology requiring diesel exhaust fluids such as AdBlue.
  • ZF EcoLife 6 AP 1410 B gearbox
    Six-speed automatic transmission
  • Wright Eclipse Gemini II Bodywork
    Body kits supplied by Wrightbus of United Kingdom in CKD (complete knock-down) form, assembled locally by SBS Transit’s technical counterpart, ComfortDelgro Engineering
  • LECIP Electronic Display Signages (EDS)
    Orange LED matrix design.
  • Carrier Sutrak air-conditioning, rear-mounted

The major technical difference in the Batch 4 lies in the powertrain, where the 4-speed Voith DIWA gearbox has been replaced by the 6-speed ZF EcoLife model, which were previously installed only on Batch 1 units.

The interior has also been modified to accommodate a straight staircase with two landings instead of the conventional curved and continuous staircase. Volvo B9TL chassis built to Hong Kong specifications had previously been modified to accommodate the longer straight stairs (as bus operators requested the feature) and SBS Transit seems to have also adopted the feature.

Additional features include headrests on the side-facing priority seats on the lower deck, and a slimmer EDS housing unit on the upper deck.

BSEP Batch 3 (SBS3449X onwards)

Volvo B9TL buses of the BSEP Batch 3 make were identical in all specifications to Production Batch 4 buses. Registration started on 3 Aug 2015.

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SBS Transit Volvo B9TL Wright (Euro V) – BSEP Batch

For background information on the BSEP, read the Bus Services Enhancement Programme article.

The BSEP Batch comprises all Volvo B9TL Wrights that are under the Bus Services Enhancement Programmed (BSEP). Purchase of these buses are fully paid for by the Government, inclusive of maintenance costs of the bus for the next ten years from initial registration. They were registered as SBS3300R onwards, and deliveries are expected beyond 2015.

Volvo B9TL – BSEP Batch

Volvo B9TL – BSEP Batch

Technical specifications of the BSEP Batch Wrights are identical to the batch that they were registered with.

  • Batch 1: SBS3300R – SBS3329J
    – Similar to low-floor Batch 2 specs
  • Batch 2: SBS3330D – SBS3448Z
    – – Similar to low-floor Batch 2 specs
  • Batch 3: SBS3449X onwards
    – Similar to Batch 4 specs

The initial 30 buses under the BSEP Batch 1 were diverted orders from the 300 buses SBS Transit has announced in September 2010 (Batch 2) to speed up the registration process and acquire a small pool of buses to kickstart the new BSEP routes. Later orders did not interfere much with SBS Transit’s deliveries. All of these buses have identical specifications to the low-floor Batch 2 buses, but registered in different phases.

Additional Specifications:

Refer to specifications above.

Under the BSEP, these buses are subject to strict deployment regulations, such as being barred from commercial advertising, and deployment only on BSEP bus routes or enhanced bus routes under the BSEP scheme. Additional onboard equipment installed by LTA can track bus positioning and passenger loading statistics in real time.

Engine Specification change:

Although the normal Volvo D9B310 EC06B engine is 9364cc, SBS Transit brought in 30 buses with a modified 9368cc engine instead. 20 units were registered for the Batch 3 (SBS3240E – SBS3259C), and 10 units for the BSEP Batch (SBS3330D – SBS3339E).

Several units from SBS3385X onwards were fitted with Hanover EDS units.

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SBS Transit Volvo B9TL (Euro V) – Gemilang Coachworks prototype

In 2013, it emerged that SBS Transit was engaging Malaysian bus builder Gemilang Coachworks to design and assemble a new bodywork for the Volvo B9TL. Gemilang had previously designed and assembled its own bodywork for the Scania K230UB and Scania K310UD.

Intended for launch in December 2013, the unit failed LTA road tests. The first demonstrator unit, SBS7777Y, was registered on 22 Jan 2014 and made its debut on 17 Feb 2014, running on Service 7.

Volvo B9TL Gemilang (Nearside)

Volvo B9TL Gemilang (Offside)

Basic Specifications:

  • Volvo D9B310 EC06B engine
    – Turbocharged & intercooled, 9364cc
    – 310 hp (228 kW) @ 1900 rpm
    – Torque rating of 1400 Nm @ 1100 – 1500 rpm
  • Euro-V compliant
    Selective Catalytic Reduction (SCR) technology requiring diesel exhaust fluids such as AdBlue.
  • Voith DIWA 864.5 gearbox
    Four-speed automatic
  • Gemilang Coachworks Bodywork
    Body designed and assembled by Gemilang Coachworks of Malaysia. Delivered completely-built-up to SBS Transit.
  • LECIP Electronic Display Signages (EDS)
    Orange LED matrix design.
  • Denso air-conditioning, rear-mounted

Technical specifications of the Gemilang B9TL are similar to the other fully-low-floor B9TL Wrights.

The demonstrator unit SBS7777Y is the first SBS Transit bus to be fitted with Daytime Running LED lamps. Ster NewCity seats are also new to the Gemilang B9TL, with previous generations of buses fully relying on Vogelsitze. Licensed capacity is 133 passengers, comprising of 55 upper deck seating, 27 lower deck seating and 51 standing passengers.

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Transition to Government Contracting Model (GCM)

According to the GCM, LTA would purchase buses from both SBS Transit and SMRT Buses to lease them to the winning transport operators of the various route packages. The bus models for this scheme include SBS Transit’s Mercedes-Benz Citaros, SBS Transit’s Volvo B9TL Wrights, SMRT’s MAN A22s and SMRT’s Alexander Dennis Enviro500s.

LTA has initiated the GCM initially using buses destined for SBS Transit but registered under the Bus Service Enhancement Programme (BSEP). These buses, destined for service with SBS Transit fleet but owned by the Government, were rerouted to operators of the first few GCM packages such as Tower Transit, the initial operator of the Bulim Bus Package.

To further expand the GCM bus pool, the Land Transport Authority said on 29 December 2015 that it would take over SBS Transit’s bus purchasing contracts worth S$164 million for 346 new bus purchases, scheduled for delivery in 2016 and 2017. It will also directly buy 50 buses, worth about S$23 million, which were delivered to SBST between June and December this year.

Among the 346 buses to be bought under the contracts, 246 are double-deck Volvo B9TL buses, and among the 50 buses to be bought from SBS Transit38 are double-deck buses

In total, LTA will be buying 284 Volvo B9TL buses for the GCM. Based on our best guesses, Volvo B9TLs are drawn from SBS Transit’s Fouth Batch of 415 units, registered from SBS1Z onwards.

As part of the transition to GCM, several new Volvo B9TL buses built to SBS Transit specifications registered for GCM will be registered from SG5000E onwards.

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Additional Specifications

SBS Transit Volvo B9TL
Batch Registration Engine Gearbox Introduced Retired Bodywork
CDGE SBS7300P – SBS7499A Volvo D9A300 EM-EC01 ZF Ecomat 6HP602 (150),
Voith DIWA 864.3 (50)
2006 ComfortDelGro Engineering
1 SBS7500D – SBS7686B Volvo D9B310 EC06B ZF EcoLife 6AP 1410B 2010-2011 Wright Eclipse Gemini II
2 SBS7700T – SBS7729L Voith DIWA 864.5 2011
3 SBS3000G – SBS3299L,
SBS3600A – SBS3986L
2011-2015
4 SBS1Z onwards ZF EcoLife 6AP 1410B 2015–
BSEP 1 SBS3300R – SBS3329J Volvo D9B310 EC06B Voith DIWA 864.5 2012
BSEP 2 SBS3330D – SBS3448Z 2012-2014
BSEP 3 SBS3449X onwards ZF EcoLife 6AP 1410B 2015–
 
GML SBS7777Y Volvo D9B310 EC06B Voith DIWA 864.5 2014 Gemilang Coachworks
Government-owned under GCM: Volvo B9TL
Batch Registration Engine Gearbox Introduced Retired Bodywork
GCM SG5000E – Volvo D9B310 EC06B TBA 2015 Wright Eclipse Gemini II

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Summary of SBS Transit Wright B9TL Batch deliveries separated by time period:

August 2009

  • Original first order of 150 units

September 2010

  • Original second order of 300 units
  • Later split into Batch 2 (30 low-entry units , 240 low-floor units) and BSEP Batch (30 units)
  • Midway into low-entry delivery, SBST changed chassis configuration into a full-low-floor version, hence the remaining 270 units are fully-low-floor.
  • Out of the remaining 270 low-floor units, 30 units are funded by the BSEP scheme

July 2012

  • Original third order of 550 units. Announced split into Batch 3 (400 units) and BSEP Batch (150 units)
  • BSEP buses are funded under the BSEP scheme
  • Additional order of 15 buses added midway, bringing the total to 565 units ordered.
  • Final count of Batch 3 (446 units) and BSEP Batch (119 units)

July 2014

  • Original fourth order of 415 units. Split into Batch 4 (??? units) and BSEP Batch (???units).
  • Some units registered under the GCM

May 2015

  • Delivery of 1000th Volvo B9TL Wright, SBS3971D, to SBS Transit. Press release states 430 more buses to be delivered.

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Gallery:

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External Links & References:

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9 thoughts on “Volvo B9TL

  1. 1415 buses of wright is still not enough. Get some more to replace the soon deregistering of Dennis Trident 3, Volgren Volvo B10TL. Buy another 345 buses to replace Dennis Trident 3 and Volgren B10TL.

  2. SBS Transit Volvo B9TL Wright Eclipse Gemini 2 BSEP Batch 3 registrations from SSB3449X onwards will be Hanover EDS because it was registered on 03 August 2015 (Monday) until the BSEP Batch 3 registrations ends in 2017 with SBS3599X of.

  3. It is quite funny that the first Batch 3 is registered as SBS 1 Z. It is a clear Indication that these could be part of GCM

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