midi and mini bus specs-revised -1june12_v2
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7/28/2019 Midi and Mini Bus Specs-Revised -1June12_V2
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Description
Mini Buses
SN Bus Floor heights mmMini buses Max floor ht
800 mm
400 mm floor height 650 mm
floor
height
Defination of low floor area
1Propulsion System -
ICE.Electrical, Hybrid, Fuel Cell
2 Fuels-options
3 Engine
3.1 Fuel recommended
3.2Engine HP sufficient to provide
:
iRated performance at GVW in a
stop/start urban operations
ii An acceleration (meter/sec/sec) ≥ 0.8 m/s/s
iii Attain Bus speed of 0-30 kmph in
iv Max speed
vGradeability frm stop at GVW
17 percent
viUninterrupted Power to auxiliary
gadgets incl. ITS,PIS√
viiRated HP / torque preferrably at
lower rpm/rpm range
3.3Maximum Fuel efficiency kmpl or
kmpkg
3.4 Emission norms BSIII/BS IV
75 kmph
Max Engine torque required at lower range of RPM and
spread over a wider range of RPM
to be specified for various fuels by vehicle manufacturer
Proposed Specs for Mini and Midi urban buses
Internal Combustion Engine
Diesel / CNG / ULSD/LPG/Bio-diesel
Fuel compatible engine
Diesel / CNG / ULSD
Max vehicle speed of upto 75 kmph bus GVW
Definition of Low Floor area as
per DTC documents – “Lowfloor area shall not be less than
50% of the total saloon area
(excluding front wheel boxes
and driver’s cab) and shall not
≤ 10 secs
√
BSIII/BS IV
Midi buses
≥ 0.8 m/s/s
17 percent
Bus specifcations of type I, Ordinary (Non D
Bus charac
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3.5Engine management(Electronic
Management)
3.6 Engine Operational requirements
3.7 Engine Location (Front / rear) Optional
4Transmission-heavy duty-
Preference as I/II/III
i Automated Manual Transmission( I
ii
Manual - Synchromesh - forward
speeds(min 5) & constant mesh on
reverse gear(MT)
II
iii Automatic Transmission III
ivColumn or floor - Column or floor
(Optional) √
4.1 Operational Safety
5Clutch (where applicable)
6 Rear Axle
7Front Axle
8 Steering system
9 Suspension System
i Front
ii Rear
iii Kneeling (mm)
iv Anti roll bars /stabilizers
vShock absorbers
viControls (optional)
Both front and rear
Transmission system be fitted with a mechanism
which makes it possible to engage reverse gear only
when vehicle is stationary
Engine oil Pressure, Engine Coolant temperature, Engine
Speed in RPM, Vehicle Speed, Engine % load (Torque),
Engine should be able to operate efficiently at
ambient temperatures of approximately 0o
to 50oC,
humidity level from 5% to 100%, and altitude
levels of upto 2000 meters , generally operating in
the semi arid zone / hilly region prevailing in thearea.
Hydraulic double acting 2 at front & 4 at rear
Electronically controlled air suspension system
√
III
air bellows - 2 nos.
air bellows - 4 nos.
60mm entry/exit side severally&collectively
Dry, Single plate, Power assisted operation
Single reduction, hypoid gears, full floating axle shaftswith optimal gear ratios suitable for urban operations
Heavy duty reverse elliot type Axle suitable for various
floor heights
Hydraulic power steering
Pnuematic
II
Optional
I
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10 Braking System
in s an ra e oc ng
√
ii Eleronic controls (optional) √11 Electrical system
11.1 Batteries:
11.2Self Starter
11.3
Alternator
11.4 Electrical wiring & controls -type
12 Speed limiting device(Optional):
Electronic type Duly approved /certified as per AIS – 018/2001 or latest, Temper proof and be adjusted to
applicable speed limit
Multiplexing type
Dual circuit full air brakes, with disc type arrangement
for front and drum at rear brakes. Graduated hand
controlled, spring actuated parking brakes acting on rear
wheels
24 volt DC
Low maintenance type lead acid batteries for 24 V
system- performance as per BIS:14257-1995( latest).
2*12V of commensurate capacity. Maintenance free
batteries preferred.
24V,100 amps (another alternator of similar capacity for
AC buses)
24V,4.5 kw
√
√
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13Tyres 7.50*16R14
14 Fuel Tank
Fuel Tank location etc
15 Bus characteristics
15.1 Bus dimensions mm(indicative)
iOverall Length(Over Body excl
bumper)≤ 6000
iiOverall Width(sole bar/Floorlevel-
extreme pts)≤ 2200
iiiOverall Height(unladen)-(At
extreme point )≤ 3300
iv Wheel-base ≥3000
v Front Overhang ≤ 45%
vi Rear Overhang As per CMVR
15.2Turning circle radius (mm)-
Minimum
15.3 Floor Ht above ground(mm) ≤ 800 mm≤400 for ≥ 50% of
bus length
≥ 50% of
bus
15.4 Clearances mm
i Axle Clearance(mm)
ii Wheel Area Clearance(mm)
iiiMin.Ground Clearance(un-
kneeled) at GVW
15.5 Angles (degrees)
iv Angle of Approach (Unladen)
v Angle of Departure(Unladen)
viRamp Over Angle (half of Break-
over angle)
16 Bus body
16.1 Type and category of buses:
16.2 Entry Exit Gates with doors
16.2 Location of gates
≤ 45%
As per CMVR
Steel Radial 10.00 R20 Tube-
less
≤ 5000
As per CMVR
min.190 mm
≤ 9000
> 250mm for parts fixed to bus body &> 200mm for the
parts moving vertically with axle.
Within the wheelbase not less than 270mm.
2600-50
≤ 3800
Capacity of diesel fuel tank/ CNG cylinders adequate to
enable bus opration of upto 300km between consecutive
fillings
Optional
Not less than 9 degrees.
Not less than 9 degrees.
Minimum 4.8o to 5.1o ,as per wheel base.
Type1 Ordinary NDX
Location on near side
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16.3 Type of doors
i Operating mechanism
ii pen ng os ng me n sec per
iii Positions of door controls
ivPassenger safety system - allowing
bus motion on doors closing√
16.4 Front Service doors - near side:
a- Door aperture (without
Flaps)mm
b- Clear Door width (fully
opened)mm
c - Door height
d Positioning front service gate
e No. of gates min. 1
16.5Rear Service doors(near side):
where provided√
a- Door aperture (without
Flaps)mmAs per bus code
b- Clear Door width (fully opened
)As per bus code
c - Door height As per bus code
d-Position ing Rear Door wrt C/L
of RrAxle.as per bus code
e No. of gates 1
16.6
ax. s ep e g mm rom
ground - unladen & un-kneeled
a stepped type entry 400
bno step entry/level entry(at stn
platform ht.)800 400 650
16.7 Max height (mm)of other steps
a if door ahead of rear axle
b if door behind rear axle
As per bus code
as per bus code
As per bus code
As per bus code
As per bus code
200 250
As per bus code
Rear edge of gate 1500 mm
ahead of C/L of R/axle
1
√
1
As per bus code
As per bus code
400
4
√
√
Electro pneumatically controlled
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16.8 Ramp for wheel chair at the gates
Suitable mechanism to
provide accessibility to
persons with
disabilities(PwD) as per
1995 act
a Dimensions
b Material
c Load carrying capacity
d
Device to prevent the wheel chair
roll off the sides when the length
exceeds 1200mm
as applicable for 16.8
e Device to lock wrapped up ramp
f Kneel Ramp Control: as applicable for 16.8
Requirement for passenger with
limited mobility√
Wheel Chair Anchoring - min. for
one wheel chair √
Priority Seats - min 2 seats √
Stop Request- on every pillar √
Emergency doors/exits or appertur
Dimensions mm
Door closing Requirements for
Bus Movement -
-
construction & control system of a
power operated service door be such
that a pax is unlikely to be
injured/trapped between the door
As per bus code
Door Components As per bus code
Door locks/locking systems/door
retention items to meet requirements
of
As per bus code
as applicable for 16.8
Sunken type wrap
over(manually operated) ramp,
for wheel chair of PwDs, fitted
on floor at gate infront of PwD
seat anchorage.
> 300 kgs
Width minimum 900 mm
Aluminum alloy with anti-slip
coating
Bus could start only after door closing completed
√
√
√
Kneeling arrangement for
Kneeling on left side severally
and combined.Kneeling upto
60mm
g
16.10
√
√
√
16.9
As per bus code
As per bus code
As per bus code
As per bus code
As per bus code
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Door Hinges As per bus code
17 Bus Body
17.1 Design Type Approval
Design Type Approval -All bus
body structures & structural
aggregates be designed to fulfil
the loading,operating &
performance parameters using
Finite Element Analysis or any
other analytic technique for:
Strength
Stiffness
Structural Stability
VibrationSafety
As per bus code
17.2 Structural performance
17.2.1
a
Body Structure Strength Test-
Each type of vehicle be subjected to
Roll Over Test on complete vehicle/
specified representative section
thereof or to an alternate method
approved by the test agency
As per bus code
b Stability As per bus code
c Deflection √
d Vibrations √
e Crash worthiness √
f Roll over protection √
g
Jo nt Strengt - o y pane o nts
meet rqrmnts of holding the joined
panel when subjected to force of 60% of tensile strength of weakest
oined bod anel.
As per bus code
17.2.2 Various loads:
a
of Pax x wt. of pax (68 Kgs.) +
pax luggage weight (7 Kgs).
(Besides the vehicle related
loads).
√ √
√
As per bus code
Required
As per bus code
As per bus code
As per bus code
√
√
√
i
As per bus code
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b
Bump Loads: # Bump height
= As per relevant BIS/Indian
Road Congress Guidelines. #
Case I: Single Wheel on
Bump/Pot hole. # Case II:
Diagonally opposite wheels on
Bump/Pot hole. # Case III:
Both wheels (Front & Rear) on
√
c
Braking Loads:0.6g (applied
together). Horizontal = 0.6g
load, Vertical = 1g load,
√
17.2.3us o y s ruc ure eva ua on y
a Physical testing or
b Finite Element Method
17.2.4 Required performance values /
a Strength (Factor of safety) (tol:-
b Stiffness (Deflection) mm
c Frequency)Hertz
d
Front Impact :
Velocity=56kmph against fixed
rigid barrier)
(HIC= Head Injury Criterion
calculation is based on the
acceleration level at the head
of the driver/ passenger & the
time duration during which themaximum value of above
acceleration is build up.
Typical acceleration at the
head should not exceed 80g
continuously for 3 milli
seconds to avoid head cracks).
Roll over tests with the bus
rolling from ground level
instead of a raised platform.
Angular velocity should notexceed 5 de /sec.
position
under gravity from this
considered
√
As per bus code
√
5mm
5Hz
√ Head Injury Criterion(HIC) = 1000√ Crumbled Zone = 132mm
√No part of structure would intrude into residualspace
i. Unstable position should not occur before 35
deg. ii. No part of structure intrudes into residual
space.
As per bus code
As under
≥3 i.e.design stress≥1/3rdof yield stress
e
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f
structure {ER
=Reference energy.-- Potential
energy of the bus in its
(unstable) equilibrium
position). ER = Mxgxh Where
g Buckling Factor
17.3 etc17.3.1 Super structure
17.3.2 Understructure:
17.3.3 Paneling
a Roof paneling : Interior
b Roof paneling : Exterior
c Side Paneling:Interior
d Other side Panels:
e
tretc ane : xter or s e pane s
of stretched steel sheet at
different waist levels along length
f Skirt Panel :
g Front end interior:
h Front end Exterior
i Rear end Interior :
j Rear end Exterior
17.3.4 Insulation
a Roof structure/body
b Engine compartment
17.3.5 Aluminum Extruded sections for:
i Rub rail
ii. Decorative Moulding
iii. Wire cover
iv. Wearing Strip
v. Foot step edging
vi. Panel beeding
vii. Window frame
viii. Roof grab rail brackets
17.3.6 Floor type / Materials etc
Type of Floor as per bus code
Steps on floor
No stpes except those
necessary on near side
gates
No stpes except those
necessary for the rear
high floor area
one s ep
in the
low floor
areaeither at
gates or
across
the floor.
No step
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Aluminum extrusion IS 733/1983 or better
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
≥ 4
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
0.75 ER
Flat except at wheel arches in
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Maximum floor slope nil nil
6% ( As
per AIS
052)
Low Floor area (% of total floor ar not applicable
a Floor Surface material
12 mm thick boiling
water resistant marine
board BIS 710-
1976/latest & fire
retardent as per BIS
5509-2000(IS 15061-
2002)
b Anti – Skid material
17.3.7 Safety Glasses and fittings:
Front Windscreen (Laminated)
glass:
Size:>1500 width*1000
ht*6mm thick
Rear Windscreen:
Size:>1200mmwidth*600mm
ht*5.3mm thick
Side Windows:
Glass Thickness:
dWindow & other Glasses -
material specs, thickness etc
e Safety Glass
f Rear View Mirrors
17.3.8 Seating and gangway etc
APassenger Seatings for Ordinary
type-1 buses
Seat Layout in the low floor area NA
ea ayou n e g er oor
ea rea sea space
*Seat Pitch - minimum: mm
3mm thick Anti-skid type Silicon Grains ISO 877/76 for
colour,IS5509 for fire retardancy
, ,
curved corners with PVB film IS 2553(Part-2)-
1992/latest .
a , -p ece es gn- op xe o om s ngtoughened glass IS2553(Part-2)-1992/latest .
Single Piece Curved toughened glass-plain/flat at centre
& curved at corners IS:2553(Part-2–1992/latest
Toughned as per IS:2553(Part-2)–1992/latest of 4.8-5.3mm thickness
as per bus code AIS 052/ CMVR
as per bus code AIS 052
b
800-900mm X 2200-2300
mm*5.5+0.3 mm thick
As per DTC specs
4.8-5.3mm
a
As per bus code
400*380
As per bus code
686
c
a
1250-1300mmX 2450-
2500mm* 8mm thick
12 mm thick Boiling water
resistant Marine board BIS:710-1976/latest) & Fire Retardant
asperBIS:5509-2000(IS 15061
:2002 )
2x2,
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Min. backrest ht-from floor to top of
seat/ headrest
Seat base ht-distance from floor to
horizontal front upper surface of seat
Seat back rest height mm 350
c Torso Angle: 12 deg
d Seat materials
eea rame s ruc ure ma er a
ree e g over sea ng pos on:
Seat Base Height: As per bus code
gClearance space for seated pax
facing partition mm
Seat back / Pad material /
thickness:(optional)
Type:
Upholstery:
jArea for seated passengers
(Sqmm.) type 1 NDX/SDX:400*380
k Area for standee passengers
(Sqmm.):As per bus code
lo. o sea s nc u ng one or
13-22
m No. of Standees( calculation as per
bus code)
n Sitting / Standing Ratio
o Seats Side facing Location
p Seat Arm
q Seat back rest
r Seat belts & their anchorage
Performance & Strength requirements √
Driver Seat
Passenger Seats
B Gangway:
Min. Interior HeadRoom(C/L of
Gangway)mm
1750mm &1500mm for
non standee type
At Front Axle:
At Rear Axle:
Other areas
ii
Gangway Width (mm) from gates
to longitudinal space between
rows of seats (Access to service
650 ±50
iii
Gangway Width (mm) in
longitudinal space between rows
of seats
650 ±50
As per bus code
400*380
Fixed
Not suggested except on wheel arches and provided with
Not required
√
Pile Fabric/Jekard. 0.7-1mm thickness
As per bus code
i
1900 mm,& 1800mm on rear
side of rear door.
As per bus code
700 mm from entry-exits gates
thr' aisle
Minimum 700 mm
AIS 0243
Min 350
Polyurethene Foam IS15061:2002, 30± 5 mm
MDI Moulded IS 5509
As per bus code
AIS 023
Not required
As per bus code
Frame Structure of ERW Steel Tube
more than 800f
performance
h
b
-
s
375
Minimum 12 degrees
As per AIS 052 / Bus code
As per AIS 052 / Bus code
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iv
Gangway Width (mm) in
longitudinal space between rows
of seats (Rear of rear edge of the
rear door in RE bus)
NA
Slope of the gangway in type I bus
GeneralGagway slope in zone rearward of a
transverse vertical plane situated
1500 mm forward of the centre line
of the rear axle
Driver’s working space
Driver’s seat
17.3.1 Corrosion prevention & painting
Corrosion prevention treatment
Internal surfaces of structural mem
External surfaces of structural me
After drilling holes / welding
n erme a c ga van c corros on
b Primer coating
c Painting:
17.3.11Electricals
a Electrical Cables:
PU Paint panel Etch primer, PU primer surfacer, PU top
coat BIS 13213:1991 or latest/International standard as
applicable for exterior painting incl interior wherever
required.Shades–IS: 5-1978 (or latest)Class-A2
BIS marked, Copper conductors with fire retardant
PVC insulation capable to withstand temperatures upto
70oFire retardant cables per IS:2465-1985 class B.
Conductor x-sec varying as per circuit requirements,min
X-section 0.5 sq mm
As above for Internal surfaces of tubular structural
members corrosion prevention
s a ove or corros on preven on any r ve ng an or
welding operations carried out after treatment , etc,Corrosion free guaranteed life of bus items / structure in
Required
cAs per bus code
AIS:023 & Bus Code
Suitable specification and performance
a
Corrosion prevention treatment / painting for structural
members / components, assembled structure, panels etc,
all materials & joints would withstand a two weeks(336 hours) Salt Spray test in accordance with
ASTM procedure B117 with no structural
detrimental effect to normally visible surfaces & no
weight loss of over 1%. Other details as per bus
code
As above
vAs per bus code
Minimum 700 mm
As per bus code
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b Conductor Cross section
Safety requirements of electricals
Fuse
circuits where RMS value of
Location of cables away from heat
sources
as per Standards related to elecric
Cable insulation wrt heat
Battery Cut - off Switch (Isolator switch):
d Wind Screen Wiper:
i Wiper Motor:
ii Wiper Arm/Blade:
e Driver Cabin Fan
f g ng - n erna ex erna an
um na on
Dash Board Tell tale lighting/Control l
Cabin Lighting - Luminous flux of all
lamps for cabin lighting
Passenger area lighting -Luminous
flux of all lamps for pax area lighting
17.3.1 Safety related items:
aDriver Seat Belt & anchorage duly
type appd.
Passengers seat belt:
As per bus code - Fuse of rated current 1.5 times the load
current of electrical eqpt. necessary in every electrical
circuit
As per bus code. Isolation switch required for each such
circuit
As per bus code -Required for each such circuit
As per bus code - Required for all items
as per bus code & bulbs tested for Photometry as per IS
1606:1996
anarom c ype.
1 no.,200mm fan As per provision of CMVR, matchinginteriors
Variable speed with time delay relay asper IS011.20-24
cycles / sec, 24 V*150W min.
as per bus code
Electrically operated with two wiper arms & blades,
wiper motor heavyduty steel body with min.2-Speed
operation Wiping system as per CMVR/ BIS:7827 Part-
1, 2, 3(Sec.1 & 2)/latest. As per AIS 011
As per bus code with illumination level of ≥ 100 lux &≤200 lux
As per bus code with illumination level of ≥ 100 luxand ≤ 150 lux
As per Bus Code.
ELR recoil type,3 point mounting as per CMVR
&BusCode.Conforming to AIS:005&015.
As per Bus Code(AIS 052)
g
As per bus code
As abovee and suitable to carry rated current (Japanese
Auto. Stndrd JASO D0609-75 AV)
c
Heavy-duty type capable of carrying&interrupting totalcircuit load.1 ea near battery/driver
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Number:
c
r ver ax w ee c a r ea e
d Fire Extinguisher:
e First Aid Box:
f Handrails Min. length*dia.*
height above floor: mm
g Handholds:
h Stanchions:as for midi buses Tube
dia 30mm
i Bells for pax convenience
j Window Guardrails:
i In all school buses - minimum nos. 2
iiIn all other buses buse- minimum
nos.2
k Other details:
is guar ra a a e g rom
iie s ance e ween wo guar
l Entrance/Exit Guard/Step wellguard:
mmergency x oors, warn ng
nron ear oor,s epwe
oMirrors Right/left side
exterior/interior:
The first seat behind the driver , last two seats facing
gangway,and the side facing seats at the front and rear
wheel arch,the folding seats in wheel chair area,to be
provided with seat belts.Also seats closer to the service
doors and in front of partitions
75
2
Minimum 2 Nos. of aluminium alloy alongwith the
provision of brackets to avoid flexing
2
800mm min. ht. extending ≥ 100mm more than C/Line of
sitting position of the Pax.
75-100
As per Bus Code/ CMVR
Convex As per AIS: 001 & 002.Interior with double
curvature
Incandescent bulb AIS 008
b
Vertically fitted, aluminium
tubing with Colur contrasting
and slip resistant. 40 mm dia &
3.15 mm thick
3 points as per AIS 005 & AIS 015
Dry chemical powder type GSR – 853 (E) dated19.11.2000 (or latest)/As per bus code, 2 kg each, ISI
Marked
1 No., As per provision of CMVR
Colour contrasting and slip resistant of aluminium
tubing.32 mm dia, 3 mm thick.
Colour contrasting and slip resistant. 2 to 4 Nos. hand
holds per bay
High visibility bell pushes shall be fitted at a height of
1.2 meter on all alternate stanchions. These would assist
PwDs
Aluminium black powder coated.Tubular type. As per
AIS 052
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p Towing Device Front / rear
q Warning Triangle
r Fog Lighting
Bumpers - front and rear
Impact Strength for Bumpers
17.3.1 Miscellaneous items/requirements
Windows
Type of Window
Minimum Height of window
apperture(clear vision)≥ 700 mm
Min ht of upper edge of window
apperture from bus floor As per bus code
Minimum Width of Windows
(clear vision zone)
b Cabin Luggage Carrier
18 Life cycle requirements of bus 10 yrs and 750,000 kms
Body Structure
Refurbishing of body every NP
b Drive Train NP
c Annual Maintenance Contract(AM Optional
Notes ; NP - Not Provided, NA- Not applicable
Bus Code as AIS 052
Heavy duty 1.2 times (min.) the kerb weight of the bus
with 30o
of the longitudinal axis of the bus. As per
CMVR & IS 9760 - Ring Type
As per AIS 052 / CMVR
Meet requirement of Para 6.3.1 of bus code
sliding type window panes except ACX bus
As per bus code
As per bus code
As per bus code
As discussed above
As per AIS 052 / CMVR
a
s
a
≥ 1000 mm in type I -NDX &
SDX
Both made of Steel or impact resistant polymer or
combination of both meeting rqrmnt of an energy
absorbing system
NP
NP
Optional
10 yrs and 750,000 kms
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Reamrks
Mini Buses
Max floor ht 800 mm
Buses with floor height of
400mm and 650mm are
presently not being
manufactured in Midi and Mini
bus categories. OEMs requested
to increase the max floor ht to
850-950 mm
≥ 0.8 m/s/s
17 percent
√
BSIII/BS IV
Diesel / CNG / ULSD/LPG/Bio-diesel
Fuel compatible engine
Max vehicle speed of upto 75 kmph bus GVW
≥ 0.8 m/s/s
≤ 10 secs
75 kmph
Midi buses
Internal Combustion Engine
17 percent
√
Max Engine torque required at lower range of RPM and
spread over a wider range of RPM
to be specified for various fuels by vehicle
manufacturer
Diesel / CNG / ULSD
BSIII/BS IV
Max floor ht 800 mm
N.A
Suggested specifications after core group meeting on
01/06/12
luxe - NDX) -- Mini and Midi urban buses
eristics
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Optional
I
II
III
√
II
III
I
√
Engine oil Pressure, Engine Coolant temperature,
Engine Speed in RPM, Vehicle Speed, Engine % load
Engine should be able to operate efficiently at
ambient temperatures of approximately 0o
to 50oC,
humidity level from 5% to 100%, and altitude
levels of upto 2000 meters , generally operating in
the semi arid zone / hilly region prevailing in thearea.
Optional
Hydraulic power steering
Pnuematic
air bellows - 2 nos.
air bellows - 4 nos.
Transmission system be fitted with a mechanism
which makes it possible to engage reverse gear only
when vehicle is stationary
Dry, Single plate, Power assisted operation
Single reduction, hypoid gears, full floating axle shaftswith optimal gear ratios suitable for urban operations
Heavy duty reverse elliot type Axle suitable for various
floor heights
60mm entry/exit side severally&collectively
Both front and rear
Hydraulic double acting 2 at front & 4 at rear
Electronically controlled air suspension system
OEMs requested to remove air
suspension
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√
√
Wattage requirments will be
decided by the manufacturer
Amps requirment will be
decided by the manufacturer
As finally decided by core
group
1)Usability: a)Control all External and Internal
lamps,Fans,Buzzer,Horn 'PIS' and ITS equipment ,
Passenger/driver Compartment illumination,
Ventilation, defroster, motors, valves,Kneeling
automation,CNG Solonoid,Speed Limiter b)Monitor
Safety Critical vehicle Systems such as Braking ,door
locking,Tyre behaviour
2) Architecture a)Multi 'Node',each node with its own
microprocessor(16/32 bit min.) and memory(Flash
min.256kb,RAM min.64kb,EEPROM min.32 kb with
internal communication on CAN 2B. b)Outputs for
resistive loads/coil loads/Relay loads: High Side-At
least 5~10 per node of 20 A and 5A each (PWM,H-
bridge,Frequency controlled).c)Inputs:At least 10
inputs which can be used both as Analog and Digital
.At least one input for frequency/pulse counting.At least
8 inputs which can which can amplify signal upto 16
times. d)Ability to store and retrieve Diagonstic
Logfiles . Primary Source of data input to 'SCU' for
'VHMD' via CAN 2B(J1939).
3)Each Node to be IP 66 Certified"Operating
Conditions and Test Compliances" as per Annx 1
Dual circuit full air brakes, with disc type arrangement
for front and drum at rear brakes. Graduated hand
controlled, spring actuated parking brakes acting on
rear wheels
√
√24 volt DC
Low maintenance type lead acid batteries for 24 V
system- performance as per BIS:14257-1995( latest).
2*12V of commensurate capacity. Maintenance free
batteries preferred.
24V
24V
Electronic type Duly approved /certified as per AIS – 018/2001 or latest, Temper proof and be adjusted to
applicable speed limit
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As finilized in the core
committee meeting on 1/6/12
≤ 6000
≤ 2200TML has requested for 2.2-2.4
m width
≤ 3300
≥3000
≤ 45%
As per CMVR
≤ 800 mm
Subject to the decision taken
during the committee meeting
held on 08/06/12
Subject to the decision taken
during the committee meeting
held on 08/06/12
As finilized in the core
committee meeting on 1/6/12
2600-50
Capacity of diesel fuel tank/ CNG cylinders adequate
to enable bus opration of upto 300km between
consecutive fillings
Optional
≤ 9000
As per CMVR
min.190 mm
≤ 800 mm
> 250mm for parts fixed to bus body &> 200mm for
the parts moving vertically with axle.
≤ 3800
≤ 5000
≤ 45%
As per CMVR
Type1 Ordinary NDX
Location on near side
Within the wheelbase not less than 270mm.
Not less than 9 degrees.
Not less than 9 degrees.
Minimum 4.8 deg
As per CMVR
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√
1
√
As per bus code
As per bus code
As per bus code
as per bus code
1
400
800As finilized in the core
committee meeting on 1/6/12
Electro pneumatically controlled
As per bus code
As per bus code
As per bus code
as per bus code
4
As per bus code
√
√
As per bus code
Rear edge of gate 1500
mm ahead of C/L of
R/axle
1
400
1
√
As per bus code
As per bus code
200 200
800
As finilized in the core
committee meeting on 1/6/12
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Suitable mechanism to
provide accessibility to
persons with
disabilities(PwD) as per
1995 act
as applicable for 16.8
as applicable for 16.8
√
√
√
√
As per bus code
As per bus code
As per bus code
over(manually operated)
ramp, for wheel chair of
PwDs, fitted on floor at
gate infront of PwD seat
as applicable for 16.8
Width minimum 900 mm
Aluminum alloy with anti-
slip coating
> 300 kgs
√
√
√
√
√
√
Knee ng arrangement or Kneeling on left side
severally and
combined.Kneeling upto
60mm
As per bus code
As per bus code
As per bus code
As per bus code
Bus could start only after door closing completed
As per bus code
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As per bus code
Subject to the decision takenduring the committee meeting
held on 08/06/12
As per bus code
As per bus code
As per bus code
√
√
√
√
As per bus code
√
As per bus code
Required
√
√
√
As per bus code
As per bus code
As per bus code
As per bus code
√
√
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√
√
As under
≥3 i.e.design stress≥1/3rdof yield stress5mm
5Hz
√
√
As per bus code As per bus code
√ Head Injury Criterion(HIC) = 1000√ Crumbled Zone = 132mm
√No part of structure would intrude into residualspace
i. Unstable position should not occur before 35
deg. ii. No part of structure intrudes into residual
space.
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as per bus code
No stpes except those
necessary on near side gates
As finilized in the core
committee meeting on 1/6/12
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
0.75 ER
≥ 4
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Material to be decided by the manufacturer
No stpes except those
necessary on near side
gates
Material to be decided by the manufacturer
Material to be decided by the manufacturer
Aluminum extrusion IS 733/1983 or better
Flat except at wheel arches
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nilAs finilized in the core
committee meeting on 1/6/12
not applicable
12 mm thick boiling water
resistant marine board BIS
710-1976/latest & fire
retardent as per BIS 5509-
2000(IS 15061-2002)
>1500 width*1000 ht*6mm
thick
>1200mmwidth*600mm
ht*5.3mm thick
NA
not applicable
12 mm thick Boiling water
resistant Marine board
BIS:710-1976/latest) &Fire Retardant
asperBIS:5509-2000(IS
15061 :2002 )
nil
800-900mm X 2200-2300
mm*5.5+0.3 mm thick
a , -p ece es gn- op xe o om s ngtoughened glass IS2553(Part-2)-1992/latest .
4.8-5.3mm
Toughned as per IS:2553(Part-2)–1992/latest of 4.8-5.3 mm thickness
3mm thick Anti-skid type Silicon Grains ISO 877/76
for colour,IS5509 for fire retardancy
, ,
curved corners with PVB film IS 2553(Part-2)-
1992/latest .
1250-1300mmX 2450-
2500mm* 8mm thick
Single Piece Curved toughened glass-plain/flat at
centre & curved at corners IS:2553(Part-2–1992/latest
2x2,
400*380
686
as per bus code AIS 052/ CMVR
as per bus code AIS 052
As per bus code
As per bus code
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350
12 deg
As per bus code
400*380
As per bus code
13-22
√
1750mm &1500mm for non
standee type
650 ±50
650 ±50
As per AIS 052 / Bus code
Frame Structure of ERW Steel Tube
more than 800
As per bus code
Min 350
As per AIS 052 / Bus code
375
Minimum 12 degrees
performance
-
1900 mm,& 1800mm on
rear side of rear door.
As per bus code
Polyurethene Foam IS15061:2002, 30± 5 mm
MDI Moulded IS 5509
Pile Fabric/Jekard. 0.7-1mm thickness
400*380
700 mm from entry-exits
gates thr' aisle
As per bus code
Not required
Not suggested except on wheel arches and provided
Not required
Fixed
Minimum 700 mm
√
AIS 023
AIS 0243
As per bus code
As per bus code
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NA
As finilized in the core
committee meetings
BIS marked, Copper conductors with fire retardant
PVC insulation capable to withstand temperatures upto
70oFire retardant cables per IS:2465-1985 class B.
Conductor x-sec varying as per circuit
requirements,min X-section 0.5 sq mm
As per clause 3.17 of bus body code
Minimum 700 mm
As per bus code
As per bus code
As per bus code
As per clause 3.17 of bus body codeAs finilized in the core
committee meetings
AIS:023 & Bus Code
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As abovee and suitable to carry rated current (Japanese
Auto. Stndrd JASO D0609-75 AV)
As per bus code
As per bus code - Fuse of rated current 1.5 times the
load current of electrical eqpt. necessary in every
electrical circuit
Heavy-duty type capable of carrying&interrupting totalcircuit load.1 ea near battery/driver
Electrically operated with two wiper arms & blades,
wiper motor heavyduty steel body with min.2-Speed
operation Wiping system as per CMVR/ BIS:7827 Part-
1, 2, 3(Sec.1 & 2)/latest. As per AIS 011
Variable speed with time delay relay asper IS011.20-24
cycles / sec, 24 V*150W min.anarom c ype.
As per bus code. Isolation switch required for each
such circuit
As per bus code -Required for each such circuit
As per bus code - Required for all items
as per bus code
As per bus code with illumination level of ≥ 100 luxand ≤ 150 lux
ELR recoil type,3 point mounting as per CMVR
&BusCode.Conforming to AIS:005&015.
As per Bus Code(AIS 052)
1 no.,200mm fan As per provision of CMVR,matching interiors
As per Bus Code.
as per bus code & bulbs tested for Photometry as per IS
1606:1996
As per bus code with illumination level of ≥ 100 lux&≤ 200 lux
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as for midi buses Tube dia
30mm
2
2
Convex As per AIS: 001 & 002.Interior with double
curvature
Colour contrasting and slip resistant of aluminium
tubing.32 mm dia, 3 mm thick.
Colour contrasting and slip resistant. 2 to 4 Nos. hand
holds per bayVert ca y tte ,
aluminium tubing with
Colur contrasting and slip
resistant. 40 mm dia &
3.15 mm thick
High visibility bell pushes shall be fitted at a height of
1.2 meter on all alternate stanchions. These would assist
PwDs
The first seat behind the driver , last two seats facing
gangway,and the side facing seats at the front and rear
wheel arch,the folding seats in wheel chair area,to be
provided with seat belts.Also seats closer to the service
doors and in front of partitions
3 points as per AIS 005 & AIS 015
Dry chemical powder type GSR – 853 (E) dated19.11.2000 (or latest)/As per bus code, 2 kg each, ISI
Marked
1 No., As per provision of CMVR
Aluminium black powder coated.Tubular type. As per
AIS 052
2
2
Minimum 2 Nos. of aluminium alloy alongwith the
provision of brackets to avoid flexing
75
75-100
800mm min. ht. extending ≥ 100mm more than C/Line
of sitting position of the Pax.
As per Bus Code/ CMVR
Incandescent bulb AIS 008
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≥ 700 mm
As per bus code
10 yrs and 750,000 kms
NP
NP
Optional
Notes ; NP - Not Provided, NA- Not applicable
Bus Code as AIS 052
NP
As per bus code
Heavy duty 1.2 times (min.) the kerb weight of the bus
with 30o
of the longitudinal axis of the bus. As per
CMVR & IS 9760 - Ring Type
As per AIS 052 / CMVR
Optional
As per AIS 052 / CMVR
Both made of Steel or impact resistant polymer or
combination of both meeting rqrmnt of an energy
absorbing system
Meet requirement of Para 6.3.1 of bus code
sliding type window panes except ACX bus
10 yrs and 750,000 kms
As discussed above
NP
As per bus code
As per bus code
≥ 1000 mm in type I -NDX
& SDX
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