Cable Liner - AbsoluteAstronomy.com

The Cable Liner and Cable Liner Shuttle is a range of automated people mover

People mover

A people mover or automated people mover is a fully automated, grade-separated mass transit system.The term is generally used only to describe systems serving relatively small areas such as airports, downtown districts or theme parks, but is sometimes applied to considerably more complex automated...

(APM) products designed by DCC Doppelmayr Cable Car

DCC Doppelmayr Cable Car

DCC Doppelmayr Cable Car is a supplier of Automated People Movers based in Wolfurt, Austria. It is a wholly owned subsidiary of the Doppelmayr Garaventa Group...

for use at airports, in city centres, intermodal passenger transport

Intermodal passenger transport

Intermodal passenger transport involves more than one mode of transport of passengers. Some modes of transportation have always been intermodal; for example, most major airports have extensive facilities for automobile parking and have good rail or bus connections to the cities nearby. Urban bus...

connections, park and ride

Park and ride

Park and ride facilities are car parks with connections to public transport that allow commuters and other people wishing to travel into city centres to leave their vehicles and transfer to a bus, rail system , or carpool for the rest of their trip...

facilities, campuses, resorts and amusement parks.

The design is notable for superseding the Maglev transport at system Birmingham International Airport which was, at the time, the world’s only commercial Maglev system. The technology was used for the new "AirRail Link

AirRail Link

The AirRail Link is a people mover linking Birmingham Airport with Birmingham International railway station and the National Exhibition Centre , in the United Kingdom...

" on the existing Maglev guideway to replace the previous system and temporary bus-service shuttle that had been operating in the meantime.

Technology and system features

The fully automated people mover (APM) systems are based on cable

Cable

A cable is two or more wires running side by side and bonded, twisted or braided together to form a single assembly. In mechanics cables, otherwise known as wire ropes, are used for lifting, hauling and towing or conveying force through tension. In electrical engineering cables are used to carry...

-propelled technology. Distances up to 4 km (2.5 mi) and a peak passenger flow of up to 7,000 pphpd (people per hour per direction) are possible.

Cable propelled

The features of a cable-propelled system are as follows:

a central station powers the system, with the cable providing tractive force
fixed grip assembly connects the train to the cable
with the train attached to the cable by its grip, the cable can perform all essential functions such as propulsion
Ground propulsion
Ground propulsion is a different term than transport, because it refers to solid bodies being propelled. Those bodies may be mounted on vats or using wheels while the latter dominates for standard applications....

, acceleration
Acceleration
In physics, acceleration is the rate of change of velocity with time. In one dimension, acceleration is the rate at which something speeds up or slows down. However, since velocity is a vector, acceleration describes the rate of change of both the magnitude and the direction of velocity. ...

, deceleration and braking
train has no on-board assemblies, such as drive engines, gearboxes or brakes

Fully automated

The advantages of a fully automated system include:

no driver, conductor or on-board operator
monitoring of system operation from central control room
remote equipment diagnosis by means of a telecommunication link

Evacuation system

The evacuation system is based on a completely independent stationary diesel emergency drive that pulls a stranded train back to the station in every case, which eliminates the need for an emergency walkway.

Train vehicles

The features of the train vehicles are:

drive machinery is isolated from the environment
noise levels along the track and in the station platforms are very low
no emissions

Guideway

The guideway has the following features:

self-supporting, steel guideway
light steel guideway, possible through the use of lighter trains
consists of an I-beam which forms the running and guiding surface
guideway superstructure is a steel framework construction
for harsh winter conditions, does not require guideway heating
steel adapters between the steel truss guideway and the concrete columns allow height adjustments to compensate for ground settlements
span more than 67 m (220 ft)

Design

The design features of the train are as follows:

train has same look when operated bi-directionally, middle cars are built as equal modules, end cars are mirror vehicles.
car is a self-supporting lightweight design with extruded aluminium box-type profile sections. The integral monocoque structure is bolted and riveted, joint connections are aluminium castings.
aluminium
Aluminium
Aluminium or aluminum is a silvery white member of the boron group of chemical elements. It has the symbol Al, and its atomic number is 13. It is not soluble in water under normal circumstances....

sections are made of high-grade, corrosion-resistant alloy.
the undercarriage supports are integrated into the self-supporting car body and take the form of cavity-sealed tubular steel frames.
design is torsion-free and vehicle interior is predominantly aluminium, with a heat release of zero.

Cable Liner Single Shuttle System

The simplest configuration, with one train operating in reversible mode on one single guideway track, with low passenger capacity and headway time demand.

Cable Liner Double Shuttle System

The Double Shuttle System configuration is designed for system lengths up to 3 km and several stations. It allows higher passenger capacities and higher frequencies (shorter headways).
Two trains run side by side on double guideway track, each with its own haul rope and drive machinery for completely independent operation. This ensures very high system availability because even if one single shuttle system fails, the other system continues to operate.

Cable Liner Single Bypass System

Only one guideway enters each end station, but movable switches direct trains onto dual tracks between stations so they can pass one another en route.
The bypass must be located approximately in the middle of two terminal end stations, and can form part of an intermediate station. This configuration is comparable to the Double Shuttle System in terms of capacity and frequency (headway).
Either each train has its own haul rope or both trains are attached to the same haul rope depending on the application requirements(station configuration, system length, etc.)

Cable Liner Pinched Loop System

Creates a circular train flow where more than one train moves in the same direction. The principle of this system is based on several rope loops which adjoin and overlap each other in the stations. Every haul rope loop is supplied with its own drive- and return machinery.
In every station each vehicle of the train has to be disconnected from the actual haul rope to the next haul rope in order to continue the circular and synchronized train flow. The haul rope loop change may occur only when all the trains are positioned at the standard stop position in the stations and are standstill and will be carried out during boarding/de-boarding of the passengers.
Switches installed at the end stations will guide the train from one lane of the double lane track over to a single guideway in the end stations. During the station stop the switch will be repositioned that the train can leave the station at the other lane of the double lane track. For the functionality of the Cable Liner Pinched Loop concept the stations spans have to be approx. equidistant.

External links

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