Integrated Solution For Modern Transport Infrastructure

Technical solutions in modern transport infrastructure

Solutions applicable for: Local Governments, Telecom, IT Railways, Road,
Airports.

1. TETRA 9. Intrusion Detection
2. IP CCTV 10. Data Network.
3. PAS/PIS. 11. Fiber Optic Network.
4. IP Telephone Network 12. IP TV (Commercial
5. Transport advertising).
Infrastructure WiFi 13. Public GSM,UMTS, WiFi,
6. Vehicle PSTN.
Communication
Systems. 14. Police TETRA Operator
7. Time Distribution 15. Car Parks.
Systems. 16. System Integration.
8. Voice and Video
Recorders (SAN).

Technical solutions in modern transport
infrastructure 2

TETRA subsystem was designed to support mobile voice and data
communication between authorized staff.
The design solutions adopted extends the existing TETRA network
within station area, depots and underground station.
Frequency Band 380 – 400 MHz. The RF Access Network will be
extended within above mentioned area by adding new TBS , leaky
feeder in tunnel areas, antenna in station and depots.
The call connections will be via DXT Switch located will be extended
to cater for new subscribers.
Transportation infrastructure will have access to the Network
Management System (only for our infrastructure) and TETRA Voice
Recorders (Individual and Group calls, included within the
transportation infrastructure.
The transportation infrastructure mobile users would be: mobile
users in the Stations, Depots and Vehicle.
Fixed users: command and Control (Dispatcher Work Stations) as
software application running on the System Integrator at the Control
Centre, Depot and Stations.

Technical solutions in modern transport infrastructure 3

The CCTV subsystem is designated for local and remote surveillance
of station areas (entrances, paid and unpaid areas, platform and access
to platform), depots (entrances, garage shed, handover platforms),
extra-sites as for security reasons (depot fence, emergency call points).
The coverage quality philosophy is developed based on the ROTAKIN
Standard that uses a 1.6m target high and giver %R of the height of the
screen: 5%R – Monitor, 10%R – Detection, 50%R – Recognition and
120%R – Identification.
The system concept is based on full IP CCTV (Generation 3) and
comprises the following equipment: Station/Depot/extra-sites–
Cameras, NVR, SEB, CCTV LAN Switch, Decode Vega Box; emergency
exit points cameras, Electro-optical encoders; Control Centre– CCMS,
Management Workstation. The system will be operated from
‘Command and Control’ Workstations located at: Station , Depot,
Extra-sites, Control and Command Centre, Police Headquarter.
The images will be displayed on dedicated monitors of the
‘Command and Control’ Workstations (system integrator). Parameters
proposed through design: 10%R coverage for platforms and concourse
area, 50%R at the entrances, 120%R in front of cash points.


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The Public Announcement System (PAS) functionality is to provide
automated, pre-recorded and live announcements to the passengers from the
Command and Control, Stations and Depots.
The Public Address system is divided into zones within each station or depot
which are individually or collectively addressable. Ambient noise sensors
measure the ambient noise and adjust the volume of the PA announcement
accordingly.


Loudspeaker type, location, tapping and power are defined through
acoustic studies using 3D modeling.
Intelligibility target is minimum RASTI 0.5, with a uniform SPL across
the zone.

The PAS subsystem components:
Command and Control: Server, NMOC Workstation.
Stations: Server, Loudspeakers, Ambient Noise Sensors, Amplifiers,
Station Master Console, Platform Announcement points
Depot Equipment: PA amplifiers, loudspeakers.


The telephone network system architecture is based on Alcatel
OmniPCX Enterprise switched deployed at each location connected
together via Data Network.
The connection between OmniPCX and Data Network will be via
TCP/IP on Ethernet and H-323 links. The connectivity is based on ABC
Protocol (Alcatel property). ETSI QSIG is used for external connection
to PTOs.
Application to site includes deployment of the following type of
terminals: Digital Telephones 4029/4039, Analogue telephone
Temporis 500, Fax Machine, ECB, IP telephone 4038, SIP phones (OCS
console terminal) and Attendant console 4059.
Telephone sets will be installed at: Command and Control, Depots,
Station, Extra-sites.
Telephone network will be designed to ‘Close User Group’ principle.
The numbering plan assigns 2 digits for node number and 5 digits for
subscriber identification.
Additional ‘video-conference’ solution could be implemented at the
‘Client’ request.


TI WiFi is used to access the on board CCTV system, download of pre-
recorded CCTV, IP TV (Commercial adverts), backup of critical video files
(SAN), transmission of vehicle alarms.
An operator at the Command and Control or Police HQ can view the CCTV
cameras live or access pre-recorded material from the on board CCTV Server..
The system uses the IEEE 802.11g standard (2.4GHz) translated to
proprietary band.
A series of access points deployed along the track provide continuous radio
coverage. The train ‘hops’ from access point to access point to provide
seamless IP communication between the train and ground at a minimum of
6MBps throughput.
Each access point (AP) is connected to an adjacent station via fibre optics
and layer 2 switches.
The Wireless LAN Controllers are allocated to control and manage the flow
of data from each access point. The data is then forwarded to the operator
for viewing.


Comprises the following components:

CCTV: remote surveillance and local recording of information captured from
Interior cameras and front/end cameras.
PAS: announcement of the destination and next stop. Live announcements
from the ‘Command and Control’ are also supported.
PIS: LED panels providing destination information along with ad-hoc
messages.
Emergency Call: communication between passengers and operators
provided at each doorway
TETRA radio for voice and data communication
OBSCU (two units for resilience) that manage all OBS equipment.
Maintenance Workstation at the ‘Command and Control’.


The TDS is designated to provide an accurate time synchronisation for all
systems and display the time information for the public and operating
personnel in Transport Infrastructure.
In order to ensure accurate clock synchronisation, the system is
equipped with a GPS-synchronised that distribute the correct time under
NTP v3 protocol.
Analogue and digital clocks will be synchronised from either Master
Clock / Sub-Master Clock and be installed at Station, Depots and MPS.
Synchronization hierarchy includes the following chain: GPS → Mater
Clock, Master Clock → Sub Master Clock, Sub Master Clock → Slave
Clocks.
The interface to other subsystems will take place via NTP protocol and
‘Data Network’ physical connection.


The Voice and Video Recorder provides recording and archiving of
audio and video from the TETRA, Telephone and CCTV.
Build up based on FCH SAN architecture and principles.
All telephone and TETRA calls involving ‘Command and Control’
operators are recorded. CCTV ‘events’ are recorded (with adjustable
pre-amble) which are either operator initiated or automatically
triggered from events such as EC calls, IAS alarms etc.
The VVR is four ‘layer’ architecture as follows: Recording Layer,
Backup Layer, Archive Layer and Playback Layer. Once the files are
recorded at the Recording layer, they are passed to the Backup layer
where they are processed before being stored at the Archive layer. The
Playback layer provides search and retrieval functionality and
synchronizes the video and audio from ECB calls.
The Archive has been dimensioned for 30 days worth of recording.
Statistical assumptions have been made in order to calculate the size of
the disks. Approx 27TB of storage is provided at both the ‘Command
and Control’.


The Intruder Detection is designated to provide the functions of
access control, access management and intrusion detection to critical
areas in: Command and Control, Stations, Depot, Extra-sites. The aim
of intrusion is to detect unauthorized access or authorized person
trying to gain access inside controlled areas and raise alarms.
Deployment of sensors, controllers, detection devices and locking
mechanisms is done wherever is required.
Field elements utilized: Motion Detector, Glass Break Detector,
Magnetic Contact Door, Proximity Card Reader, Override Key Switch,
Exit Push Button, Intrusion Zone Key Switch, Reader Module, Input
Module, Electromagnetic Lock.
The system is partition into 3 Intrusion Zones (Zone 1, Zone 2 and
Zone 3). The zone definition includes:
Technical rooms, Employees’ rooms.
Remaining areas .

infrastructure 21

Data Network is hierarchical-based topology, Multi-Switched Layer
Network technology. Architecture design includes four types of sites:
Control Centre, Pivot Stations, Meta Sites and Extra Sites. It is
backbone for Transport Infrastructure offering Ethernet connectivity
for all other communication subsystems and other applications
developed: Command and Control, Signalling, MMS etc. The essential
features of the proposed MSN solution include:
Designed to IPv4, tested for IPv6.
Quality of service.
Modular construction.
Scalable in the future.
Highly resilient.
It provides simultaneously backbone service WAN and LAN using
Gigabit Ethernet Technology – IEEE 802.3z. Each MSN nodes uses two
stacked switches for reliability purposes.
The solution is employing Alcatel OS-LS-6200 (L2 switches), OS-LS-
6850 (L3 switches) and Alcatel OmniVista 2500 at NMOC (OCC) for
management and administration purposes.

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The FON is build in order to provide the necessary capacity of
cable and transport all required communication between the
different sites of the Transport Infrastructure: Stations, Depots,
Command and Control, Extra-sites.
The FON provided is fully resilient, including two segregated cable
routes named ‘Seaside’ and ‘Landside’. If a failure occurs, the
second cable will ensure there will not be communication
disruption.
The FON comprised following types of cables:
Operational, designated to connect station and support
connectivity of MSN.
The FON is designed to ‘100% spare capacity principle. In some
particularly areas, the Contractor’s design indicates dual resilience
by employing two separate and diverted routes to the SER. All fibre
optic cables are terminated into ODF inside of SER, MPS, DCER,
CCER, EEP/EES. The WiFi design cater for intermediate FO
distribution boxes.
The ‘Operational Fibre Optic Cable’ size is variable, between 24 to
60 cores.

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Commercial advertising allows advertising and information to be displayed
at all stations and trains.
A central server at the ‘Command and Control’ collects either live television
through cable, or imports media files from DVD, external hard drives etc.
The central server distributes the files to each station and train for localized
playback (IP TV).
Each station and train own a local server capable of storing up to 12 hours
video and audio, various formats.
The system also supports pseudo-live streaming of television from the
‘Command and control’ to all displays.
Data Network is employed for transfer of live images or update of recorded
video content between ‘Command and control’ and Station.
The station displays use 46” TFT (analogue and intelligent) and vehicles
15”.

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Extension of GSM and UMTS coverage in-building was implemented
using either ‘active’ or ‘passive’ solutions, depending of the distance
between equipment room and system antennas.
‘Distributed Antennas Systems’ which integrates GSM, UMTS and
WiFi is planned at each site (station).
Design solution accommodates requirements of 3 PTOs.
Inter-site areas are ‘natural’ covered from adjacent sites.
Tunnels coverage was implemented with leaky feeder installed at the
windows level and repeaters if the distance between station BTS
exceeds 500m.
Broadcast of Public WiFi (2.5 GHz) in moving vehicles (trains) is
implemented by using backhaul via HSPA/WiMAX of the fixed
infrastructure and WiLAN IEEE 802.11g.

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Co-ordination of interface with TETRA Operator and further integration
into their PMR network required to undertake the following actions:
Organize clarification and progress meetings.
Co-operate for review and approval of Contractor’s design.
Raise ‘Request For Information’ to gather information concerning
technical parameters to be set up into new network.
Numbering Plan (ISSI, GSSI, TEI).
Fiber Optic connectivity.
Transmission support, frame structures.
Frequency allocation plan, coverage levels, handover areas.
Encryption, TETRA Class Concept, Priority Levels.
Network Management inter-operability, alarm transfer.
Agree for the installation, testing and commissioning schedules.
Individual and group call recording.
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DXT TCS N etA ct C o m p tel
Server Server Server

DN2
CXC

CDD

A D M 1650N B R
SD H F ront E nd

infrastructure 33

The scope of supply at the car parks includes:
Provision of general communication infrastructure: telephone network,
intrusion detection, Surveillance CCTV.
Ticketing vending machines and connection to bank network.
Access systems / Entry terminals.
Parking station management system, Cashier points.
Car identification systems (ANPR), License plate recognition.
Dynamic signage and car space allocation.
LAN, WAN connections.
Extension of GSM/UMTS services.
Extension of TETRA services.

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System Integrator is a dedicated software (similar OS, NMS) that runs in
the Central Server and ‘Command and Control’ WS in Control Stations,
Depot, Power Stations, Police CCTV Operator.
Graphical User Interface includes network map of all location serviced
and icons to access the applications.
Ergonomic study completed for each location to accommodate operator
position.
SW Components: SCADA, Energy RTU, Protocol RTU.
It manages all components of transportation infrastructure e.g. HV, Low
voltage, Environmental Control Systems, Escalators, Fire Protection
systems, Maintenance system etc.
It operates communication systems: incorporates software emulators for
TETRA terminals, surveillance of the remote CCTV cameras, intrusion
detection, public announcements etc.
System Integrator is connected via SNMP, API or dedicated protocols to
each subsystem under management (S_COMMS).
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Integrated Solution For Modern Transport Infrastructure

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