MEDC 9 (20 37) CD2 / SADC SARA HT 92: 2017  
 
                                                                                                                                                                                             
                                                                                     
 
 
 
©TBS 20 23  First Edition  DRAFT TANZANIA STANDARD  
 
 
 
MEDC 9 (2037 ) CD2 / SADC SARA HT: 92: 2017 – Railway Safety Management – 
Technical Requirements for Engineering and Opera tional Standards – Rolling 
Stock  
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
TANZANIA BUREAU OF STANDARDS  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
i 
©TBS 202 3 – All rights res erved  This Tanzania St andard was published under the authority of the Board of Directors of Tanzania Bureau 
of Standards  yyyy-mm-dd. 
 
Tanzania Bureau of Standards (TBS) is the statutory national standards body for Tanzania, established 
under the Standards Act No. 3 of 1975, ame nded by Act No. 2 of 2009.  
 
The Mechanical Engineering Divisional Standards Committee (MEDC) under whose supervision this 
Tanzania Standard was prepared consists of representatives from the following organizations:  
 
University of Dar es Salaam (UDSM)  
National Development Corporation (NDC)  
Weights and Measures Agency (WMA)  
Tanzania Industrial Research Development Organization (TIRDO)  
Aluminium Africa  
*National Institute of Transport (NIT)  
Ministry of Works, Transport and Communications.  
 
The organizatio n marked with an asterisk (*) in the above list together with the following were directly 
represented on the Technical Committee entrusted with the preparation of this Tanzania Standard:  
 
Traffic Police HQ  
Land Transport Regulatory Authority (LATRA)  
Univer sity of Dodoma (UDOM)  
Superdoll Ltd  
 
 
 
 
 
 
 
 
 
Tanzania Bureau of Standards  
P O Box 9524  
Dar es Salaam  
Tel:  022 2450206/2450298/2450949  
Fax: 022 2450959  
E-mail: info@tbs.go.tz  
 
 
 
 
 
 
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
 
  
 
NATIONAL FOREWORD  
This Tanzania Standard has been prepared under Au tomotive Components Technical 
Committee (MEDC 09), under supervision of Mechanical Engineering Standards Divisional 
Committee.  
It is identical to SADC SARA HT: 92: 2017, Railway Safety Management – Technical 
Requirements for Engineering and Operational Sta ndards – Rolling Stock , published by 
SADC Cooperation in Standardization (SADCSTAN) . 
 
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
 
  
  
SADC SARA HT: 92: 2017   
  
 
 
 
 
 
 
 
 
 
SADC HARMONISED TEXT  
 
Railway Safety Management – Technical Requirements 
for Engineering and Operational Standards – Rollin g 
Stock  
 
 
 
 
 
 
 
 
 
 
 
 
 
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
i 
  
 
Foreword  
 
The SADC Protocol on Trade was established under the SADC Treaty in 1996, to 
provide for the  elimination of tariffs and non -tariff barriers to trade.  One of the 
objectives of the Protocol on Trade under the Technical Bar riers to Trade (TBT) 
Annex (No. 8) is to establish a common technical regulation framework, which is 
supported by seven (7) regional TBT Cooperation Structures. The TBT Annex places  
an obligation on Member states to pursue harmonization of standards and th is is 
done through the SADC Cooperation in Standardisation (SADCSTAN) which is one 
of the 7 regional TBT Cooperation Structures.  
 
Co-operation in standardisation is expected to result into having uniformly 
harmonised standards. Harmonisation of standards w ithin the region is expected to 
reduce TBTs that are normally encountered when goods and services are exchanged 
among SADC Member States due to differences in technical requirements. 
Harmonized SADC Standards are also expected to result into benefits such as 
greater industrial productivity and competitiveness, increased agricultural production 
and food security, a more rational exploitation of natural resources among others.  
 
Harmonized SADC Standards are developed by the SADC experts on standards 
through SADCSTAN Technical Committees  representing the National Standards 
Bodies and other stakeholders. Further, SADCSTAN in certain instances 
collaborates with SADC Sector Associations in the harmonization of standards to 
address sector specific needs. In this re gard, SADCSTAN collaborated with Southern 
African Railway Association (SARA) in the harmonization of this standard.   
 
This SADC  Harmonized Standards was prepared by the SADCSTAN Technical 
Committee on Automobile and Transportation (SADCSTAN TC 2) in colla boration 
with SARA.  
 
SADC Harmonized Standards are drafted in accordance with the SADCSTAN 
Harmonization Procedures which are in line with international procedures and 
practices.  
 
Attention is drawn to the possibility that some of the elements of this docu ment may 
be the subject of patent rights. SADCSTAN shall not be held responsible for 
identifying any or all such patent rights.  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
iii 
 Contents  
 
Foreword …………………………………………………………………………………………….i  
Content ……………………...………………………………………………………………………ii  
 
1 Scope  ................................ ................................ ................................ ................................ .........  1 
2 Normative references  ................................ ................................ ................................ .................  1 
3 Definitions  ................................ ................................ ................................ ................................ ... 1 
4 General  ................................ ................................ ................................ ................................ ....... 1 
5 Independent evaluation  ................................ ................................ ................................ ..............  2 
6 Design  ................................ ................................ ................................ ................................ ........  2 
7 Operating parameters  ................................ ................................ ................................ ................  3 
8 Rolling stock items ................................ ................................ ................................ ......................  3 
9 Manufacturing  ................................ ................................ ................................ .............................  5 
10 Inspection, testing and commissioning  ................................ ................................ ......................  5 
11 Monitoring, maintenance and in -service inspections  ................................ ................................ . 6 
12 Modification  ................................ ................................ ................................ ................................  7 
13 Decommissioning and disposal  ................................ ................................ ................................ .. 7 
Annex A  (informative)   Detailed description of rolling stock items  ................................ ....................  8 
Bibliography  ................................ ................................ ................................ ................................ ....... 14 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
1 
 _______________________________________________ __ 
 
Railway Safety Management – Technical Requirements for 
Engineering and Operational Standards – Rolling Stock  
_________________________________________________  
 
1 Scope  
 
This standard covers the asset life cycle components of design, construction/manufacturing 
and implementation, commissioning, monitoring and maintenance, modification, and 
decommiss ioning and disposal  of rolling stock.  
 
2 Normative references  
 
The following referenced documents are indispensable for the application of this document. 
For dated references, only the edition cited applies. For undated references, the latest 
edition of th e referenced document (including any amendments) applies. Information on 
currently valid national and international standards can be obtained from relevant National 
Standards Body (NSB) or SARA . 
 
SADC SARA HT 89 :  Railway Safety Management - General . 
 
SADC  SARA HT 90 : Railway Safety Management - Technical requirements for engineering 
and operational standards – General.  
 
ISO 10007, Quality management systems – Guidelines for configuration management  
 
3 Definitions  
 
For the purposes of this document, the def initions given in SADC SARA HT 89  and the 
following apply.  
 
3.1 
validation  
confirmation  that particular requirements for a specific use are fulfilled  
 
3.2  
verification  
testing  and evaluation of an item of equipment or a system to assure compliance with it s 
specification or other requirements  
 
4 General  
 
4.1 Standards  and procedures shall be established, developed or adopted, implemented 
and maintained for the  
 
a) design (see clause 6),  
 
b) operating parameters (see clause 7),  
 
c) rolling stock items (see c lause 8),  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
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 d) manufacturing (see clause 9),  
 
e) inspection, testing and commissioning (see clause 10),  
 
f) monitoring, maintenance and in -service inspections (see clause 11),  
 
g) control of the process of modification or reconstruction (see clause 12), and  
 
h) decommissioning and disposal (see clause 13),  
 
of rolling stock, including rolling stock systems, sub -systems and components to ensure 
that the appropriate safety requirements and standards are met.  
 
4.2 Standards  and procedures shall be established, developed or adopted, implemented 
and maintained for the validation and verification of : 
 
a) the design (see clause 6),  
 
b) all stages of manufacturing (see clause 9), and  
 
c) all other life cycle phases  
 
of rolling stock, including rolling stock systems, sub-systems and components.  
 
4.3 Standards  and procedures shall be based on the consideration of detailed selection 
and design recommendations.  
 
4.4 Consideration  shall be given to the inclusion of the items listed in this standard  in the 
railway operator’ s safety management system,  as detailed in SADC SARA HT 89 , 
based on the operator’s risk assessment and the type of operation being undertaken 
by the railway operator.  
 
4.5 The railway operator should consider including the relevant items listed in clause  8 and 
annex  A in his/her safety management system in accordance with SADC SARA HT 89 . 
 
5 Independent evaluation  
 
The validation and verification processes shall be performed at an appropriate level of 
independence. The degree and the nature of independence  shall be determined by at least 
the following factors:  
 
a) the risk of errors, omissions and biases being perpetuated; and  
 
b) the risk of interference between the new and existing systems.  
 
NOTE    Independence does not necessarily imply the usage of an e xternal party.  
 
 
 
 
 
 
6 Design  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
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 Design and construction of rolling stock should aim not only at eliminating faults which will 
lead to failures, but also at ensuring that the consequences arising from any failure will be 
minimized.  
 
7 Operating parameters  
 
Operating parameters shall be determined in accordance with SADC SARA HT 89 and 
SADC SARA HT 90 . 
 
 
 
 
8 Rolling stock items  
 
8.1 Standards  and procedures for the selection and design of rolling stock shall include the 
following items, where relevant:  
 
a) Vehicle body:  
 
1) body structure;  
 
2) exterior aesthetics;  
 
3) exterior doors and steps;  
 
4) couplers and draw gear;  
 
5) gangways;  
 
6) window units;  
 
7) body additions;  
 
8) visibility.  
 
b) Bogies and running gear:  
 
1) bogie structure;  
 
2) suspension;  
 
3) wheel set;  
 
4) traction link;  
 
5) bogie addi tions.  
 
c) Motive power supply:  
 
1) line voltage system;  
 
2) electric power conditioning;  
 
3) electric power conversion;  MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
4 
  
4) engine system;  
 
5) mechanical power conversion.  
 
d) Train system control.  
 
e) Propulsion:  
 
1) drive system;  
 
2) traction controller;  
 
3) adhesion optimizat ion. 
 
f) Braking:  
 
1) braking system;  
 
2) braking control;  
 
3) adhesion optimization;  
 
4) braking performance.  
 
g) Auxiliaries:  
 
1) air system;  
 
2) hydraulic system;  
 
3) battery system;  
 
4) electric supply system.  
 
h) Communication:  
 
1) fault and diagnostic systems;  
 
2) data communicat ions;  
 
3) information/voice communication.  
 
i) Coach interior or driver/operator cab interior:  
 
1) interior architecture;  
 
2) heating, ventilating, and air conditioning (HVAC);  
 
3) interior doors;  
 
4) water services;  
 
5) catering;  MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
5 
  
6) ticketing;  
 
7) lighting;  
 
8) ergonomics.  
 
j) Special: 
 
1) tilt system;  
 
2) maintenance vehicles;  
 
3) remote control;  
 
4) fire and vandalism.  
 
NOTE    A detailed description of the items above is given in annex A.  
 
9 Manufacturing  
 
9.1 General  
 
The items listed in 9.2, including those in annex  A, should be included i n the  railway  
operator’s safety management system  and determined in accordance with SADC SARA HT 
90 and this standard.  
 
9.2 Requirements  
 
Standards and procedures for the manufacturing of rolling stock (see clause  8) shall 
include the following:  
 
a) process c ontrol in accordance with SADC SARA HT 89 ; 
 
b) appropriate manufacture and installation practices and specifications;  
 
c) procedures to ensure the use of approved and current plans; and  
 
d) preparation of operating and maintenance procedures and instructions.  
 
10 Inspection, testing and commissioning  
 
10.1 General  
 
Inspection, testing and commissioning of rolling stock are essential elements in ensuring 
safety integrity. Inspection, testing and commissioning should complement and in no way 
substitute, quality contro l of the design, production,  and installation.  
 
The inspection and testing requirements of rolling stock in 10.2, including those items given 
in annex  A, should be included in the railway operator’s safety management system and 
determined in accordance wit h SADC SARA HT 90 . 
 
10.2 Inspection  and testing requirements  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
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 Standards and procedures shall include inspection, testing requirements and checking of 
the following, where applicable:  
 
a) Independence in the performance of inspection, testing and commissioning . 
 
b) Compatibility between new or modified rolling stock, rolling stock elements,  and 
systems, and with other functional disciplines and the environment.  
 
c) Validation and verification of the rolling stock, rolling stock systems, sub-systems,  or 
components, as  applicable.  
 
d) Safe phasing in of any system change.  
 
e) Procedures for handover and acceptance of rolling stock.  
 
f) Inclusion of rolling stock in the operational vehicle fleet.  
 
g) Provision of relevant documentation, including manufacturing drawings, maintenance 
manuals and operating procedures.  
 
11 Monitoring, maintenance and in -service inspections  
 
11.1 General  
 
The items listed below, including those in annex  A, should be included in the railway 
operator’s safety management system and determined in accordance w ith SADC SARA HT 
90. 
 
11.2 Requirements  for monitoring  
 
11.2.1  General  
 
11.2.1.1  Monitoring  shall include the following, where relevant:  
 
a) a system to ensure that rolling stock is available for scheduled inspections ; 
 
b) rolling stock inspection and testing in  accordance with specified safety requirements;  
 
c) train integrity checking before departure and en route;  
 
d) identification of safety critical faults and abnormal deterioration rates; and  
 
e) notification of reduced serviceability.  
 
11.2.1.2  In-service ins pections of rolling stock items as listed in clause 8 shall be 
considered when required and as specified in the organization’s safety 
management system.  
 
11.2.2  Requirements  for maintenance  
 
Maintenance processes necessary for rolling stock, including roll ing stock systems, sub -
systems and component reliability, availability, maintainability and safety, shall be identified 
and planned. Processes shall include the following:  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
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 a) Preventive or corrective maintenance plans such as  
 
1) process control in accordanc e with SADC SARA HT 89 , including record -keeping;  
 
2) procedures to ensure restoration to the required standard; and  
 
3) procedures for configuration management in accordance with SADC SARA HT 90  
and ISO 10007.  
 
b) Availability of manuals such as those that cove r operating, maintenance and 
components of rolling stock.  
 
12 Modification  
 
Standards and procedures for the control of the process of modification or reconstruction of 
rolling stock, including rolling stock systems, sub -systems and components, shall inclu de 
consideration of the following:  
 
a) Effects of the proposed modification on the railway system as a whole.  
 
b) Effects of the environment on the proposed modification.  
 
c) Design, implementation and commissioning of the modification or re -build in accordance 
with clause  6 to clause  10 (inclusive).  
 
d) Effective recording, promulgation,  and communication of changes and modifications 
where especially operational safety is affected.  
 
e) Configuration management.  
 
13 Decommissioning and disposal  
 
Standards and procedures s hall be established, developed or adopted, implemented and 
maintained for the decommissioning and disposal of rolling stock, including rolling stock 
systems, sub -systems, components, and means of preventing inappropriate usage before 
disposal. The followin g shall be included:  
 
a) Appropriate marking of each decommissioned item for identification purposes.  
 
b) Procedures for the movement of decommissioned rolling stock, including rolling stock 
systems, sub -systems and components, and the identification of persons authorized to 
allow such movement.  
 
c) Ensuring safe operations during decommissioning, scrapping,  and disposal.  
 
d) Ensuring that the condition of decommissioned material and equipment is clearly 
identified.  
 
e) Prevention of inappropriate reuse of decommissioned material.  
 
f) Minimization of environmental risks, including health, safety,  and pollution hazards 
associated with the decommissioned items, considering both short -term and long -term 
impact.  
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
8 
 The items listed above shall be included in the railway operator’s safety management 
system in accordance with SADC SARA HT 89 . 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Annex A  
(informative )  
 
Detailed description of rolling stock items  
 
This annex provides a detailed description of the items listed in clause 8.  
 
Table A.1  — Detailed description of rolling stock items  
 
1 2 3 
No. System  Characteristic hardware, components, 
parts, etc.  MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
9 
 1 Vehicle body:  
Body structure  Body sides, body ends, roof, including 
welded items, under -frame, including 
welded items, floor, integrity of pressure 
vessels, crashworthiness, structural 
partitions, articulation joints/structure, skirt, 
obstacle deflector (cowcatchers), anti -climb 
units, roof hatches, centre of gravity, static 
and kinematic rolling stock profile, fixtures 
for jacking lifting  and towing  
Exterior aesthetics  Exterior finish panels, paint, decals, 
stickers, plates  
Exterior doors and steps  Exterior doors, door gear and control 
components, steps (folding/sliding), 
ladders, hatches, bottom discharge, 
securing mechanisms, accessi bility 
Couplers and draw gear  Coupler control components, buffing and 
draw gear, supporting components, coupler 
type, coupler heights, strength, energy 
absorption, coupling and uncoupling 
operation, recovery of failed trains, 
horizontal and vertical coup ler angles  
Gangways  Doors, gates, vestibule enclosure, safety 
covers and flooring  
Window units  Safety glass, window unit design (material 
and size), windscreen, stone guards, glare, 
emergency exit and demisting  
Body additions  Exterior fittings (grab rails, etc.), skirt, cab 
module, under -frame equipment, under -
slung equipment (e.g. engines, 
transformers, generators) fixtures (e.g. 
twist locks, tarpaulin hooks), tanks (fuel, 
water, air, hydraulic, etc.), mirror, horn, 
windscreen wash/wipe, identificati on, 
signage and antennas  
Visibility  Exterior lighting (headlights, tail -lights and 
step lights) end -of-train markers, reflective 
material and colour scheme  
2 Bogies and running gear:  
Bogie structure  Bogie frame and bogie -to-body interface  
Suspension  Dynamic behaviour (running safety, track 
loading, ride characteristics), slewing 
bracket, springs (coil, blade, rubber, 
chevron, airbags), surge reservoir, bump 
stops, dampers, resilient components and 
motor nose suspension  
 
 
Table A.1  (continued ) 
 MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
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 1 2 3 
No. System  Characteristic hardware, components, 
parts, etc.  
2 Bogies and running gear:  
Wheel set  Solid/tyred wheels, resilient/noise reduction 
wheels, assembly, geometric tolerances, 
electrical resistance, heat dissipation, 
balancing, identification, axle bearings 
(lubrication), axles (material, identification), 
wheels (wheel profile, material, 
identification), gear wheels, cannon boxes, 
u-tube and quill  
Traction link  Traction rod, centre pivot and slew bracket  
Bogie additions  Flange lubrication co mponents, sanding 
components, inter -bogie control, 
jacking/lifting points, life guards/derailment 
bars/rail sweepers, earthing and friction 
liners  
3 Motive  power supply:  
Line voltage system  Pantograph and control components 
(location and number of panto graphs, 
dynamic behaviour, isolation, current 
collection), high voltage filter, main circuit -
breaker, line circuit -breaker, surge/lightning 
arrestor, pantograph switch, earthing 
switch, measuring transformer, current 
balance measurement device (return 
transformer, resistor, current balancing 
relay), contactors, fuses, axle earthing, 
high voltage cabling and clearances  
Electrical power conditioning  Line filter, power factor correction and 
harmonic filter  
Electrical power conversion  Main transformer, line  converter/rectifier, 
inverter, DC -link filter, switchgear, voltage 
regulator, discharge and protective 
resistors, earth fault detector, earth switch, 
cooling system (including fan and pump), 
air filters, duct, supporting and control 
components  
Engine sy stem  Engine rating, exhaust emissions, 
fuel/lubricant/coolant system (filling, tank 
size, etc.), control/monitoring components 
and noise suppression (engine and 
exhaust)  
Mechanical power conversion  Generator/alternator, hydraulic pump, 
direct drive and t orque converters  MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
11 
 4 Train system control:  Driver safety device (dead man’s feature), 
vigilance, train continuity, door continuity, 
automatic train control (ATC), automatic 
train protection (ATP), automatic train 
operation (ATO), communication, 
interlocking  and remote control of multiple 
consists  
5 Propulsion:  
Drive system  Traction motor, fans and pumps, heat 
exchanger, air inlet, filter, duct, motor 
supporting components, gear box, final 
drive, coupling, drive shaft, transmission, 
speed sensor and wheel  
 Traction controller  Traction power controller (inverter, 
converter, chopper, hydraulic valves, etc), 
switchgear and cooling system (including 
fans and pumps)  
 
Table A. 1 (continued ) 
 
1 2 3 
No. System  Characteristic hardware, components, 
parts, etc.  
5 Propulsion:  
Adhesion optimization  Wheel slip and slide control (creep control, 
sanding, flange lubrication, wheel speed 
differentiation), and wheel/rail profile  
6 Braking:  
Braking system  Wheel brakes, disc brakes, and tread 
brakes, electric/dynamic bra kes, magnetic 
track brakes, parking brakes, hand brakes, 
air/vacuum, brake rigging and emergency 
brakes  
Braking control  Brake controller, emergency brake vent 
valve, load sensing, electronic control 
pneumatic braking (ECPB), automatic train 
protection (A TP), single vehicle manual 
release/isolation/blow down  
Adhesion optimization  Wheel slip and slide control, sanding, brake 
system interlocking and blending, and set 
limit adhesion level  
Braking performance  Stopping distances, brake ratios and holding 
capability  
7 Auxiliaries:  MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
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 Air system  Main compressor, auxiliary compressor, oil 
separator, air dryer, exhausters, filter, 
protection components supporting 
components and control components, main 
reservoir and components, shore supply 
connections for air s upply system, airbags, 
sanding, door operating, auto coupler, main 
circuit -breaker, pantograph, pneumatic 
cocks, piping/hoses and test points for 
gauges  
Hydraulic system  Pump, motor, accumulator, cooler, 
piping/hoses and controls  
Battery system  Battery , ventilation, protection, charger, 
contactors and controls  
Electric supply system  Auxiliary transformer, motor 
generator/alternators, converter/inverter, 
filter, protection, earthing, contactors, 
control components, shore supply 
connections and distribu tion 
8 Communication:  
Fault and diagnostic system  Vehicle testing, fault detection storage, 
conditioning monitoring, maintenance 
support system, machine interface and 
event recorder/accident recorder (”black 
box”)  
Data communications  Train communicati on network, data link, 
train and vehicle bus gateway  
Information/voice communication  Passenger and crew information, 
telecommunications, driver communication, 
public address system, CCTV, train crew 
“bell” signals and emergency passenger to 
driver commun ication  
9 Coach interior:  
 Interior architecture  Flooring, wall panels, ceilings, partitions, 
seats, beds and bedding, fittings (strength of 
fixture and fittings), luggage areas/racks, 
painting, notices/signage, facilities for 
disabled passengers, passen ger emergency 
communication, grab poles and rails, fire 
and emergency equipment, fire retardant 
and non - toxic materials, storage 
compartments and securing/locking of 
equipment cupboards  
 
Table A. 1 (concluded ) 
 
1 2 3 
No. System  Characteristic hardware, c omponents, 
parts, etc.  
9 Coach interior:  
HVAC  Heating, ventilation, air conditioning, air 
treatment, ducting and control components  MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
13 
 Interior doors  Internal doors (including safety 
interlocking), door gear and control 
components  
Water services  Sanita ry equipment, ablution facilities, fresh 
water supply and effluent tank  
Catering  Refrigerator, freezer, oven, stove, hot plate, 
microwave ovens, coffee maker, 
components (work surfaces, storage, etc.)  
Ticketing  Equipment for selling and validating 
pass enger tickets and the necessary 
communication system  
Lighting  Seat, emergency, entrance, passageways  
Ergonomics  Noise and heat/cold insulation, vibration, 
ride comfort  
10 Driver/operator cab interior:  
Interior architecture  Flooring, windows (composi tion, tint and 
protection), windscreen wipers, demisting, 
sun visor, side mirrors, safety panels and 
doors, ceiling, cab back wall/bulkhead, 
seats, fittings (strength of fixture and 
fittings), drivers desk, drivers control panel, 
train assistants/guards de sk, 
notices/signage, safety components 
(warning devices), fire and emergency 
equipment, fire retardant and non -toxic 
materials, storage compartments  
HVAC  Heating, ventilation, air conditioning, air 
treatment, ducting  
Interior doors  Internal doors (incl uding safety 
interlocking), control components  
Water services  Sanitary equipment, fresh water supply, 
effluent tank  
Catering  Hot plate, fridge, microwave  
Ticketing  Equipment for selling and validating 
passenger tickets and the necessary 
communication  system  
Lighting  General, seat, emergency, entrance, toilet, 
drivers cab lighting, head and tail lights, 
drivers control panel lighting  
Ergonomics  Noise and heat/cold insulation, vibration, 
ride comfort, line of sight, position of 
controls, percentile person and 
anthropomorphic considerations  
11 Special:  
Tilting system  Control components  
Maintenance vehicles  Specialized components  
Remote control  Shunting  
Fire and vandalism   MEDC 9 (2037) CD2 / SADC SARA HT 92: 2017  
14 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Bibliography  
 
SADC SARA  HT 91 : Technical  requirements for engineering and operational standards – 
Track, civil and electrical infrastructure.