Automatic People Mover System Advantages And Disadvantages
According to long-term development planning of the Republic of Indonesia, urban railway transportation infrastructure build in many places , some of those projects are, APMS (Automatic People Mover System) project at the Soekarno-Hatta Airport, MRT (Mass Rapid Transit ) project in Jakarta, LRT (Light Rail Train) project in Jakarta, Palembang, Bandung , Surabaya and
High-speed train Jakarta-Bandung project .
In a modern urban transport vehicle , the system used is a driverless train control system. …show more content…
CBTC (Communication Based Train Control) system is a railway signalling system that makes use of telecommunications between the train and track equipment for the traffic management & infrastructure control. Here are three functions in CBTC which are ATP ( Automatic Train Protection), ATS (Automatic Train Supervision) and ATO (Automatic Train Operation).
Characteristics for CBTC system are :
High resolution trains position determination
Continuous high capacity data between train borne & wayside
Using processor to process vital data – in train borne & wayside device
b. VOBC is a vital equipment to process data and to control the train
VOBC has the interface with a balise reader, speed sensor , radio access point & TCMS.
Specification of VOBC :
19-inch rack – SIL 4 hardware certified
24 VDC PSU – EN 50155 certified
Motion counter + speed calculation – X86 core …show more content…
The signalling system of LRT
a. The principle of operation of ETCS system level 1.
European Train Control System (ETCS) is a signalling system , control & train protection system designed to replaced various safety systems that are not compatible, which one currently used in railways in Europe especially in high-speed railways.
For example ETCS level 1 , the driver is supported by lineside signalling equipment and DMI (Driver Machine Interface) information.
Hardware ETCS onboard will calculate the distance from the position of the train at this time to the end position of the Movement Authority (MA) , taking care not to exceed the maximum speed limit on the track , and controlling by lowering the speed of the train to prevent the train exceeds the limits of Movement Authority (MA) which are given.
The setting operation is performed through the action of the interlocking equipment and lineside signalling equipment and LEU (Lineside Electronic Unit) along with the Eurobalise group in generating and transmitting Movement Authority to train.
When a train near red signal aspects , the driver will stop before the signal and waited for the signal aspect to be safe before the train moves