IT in transport
IT in transport
Floating car data/floating cellular
"Floating car" or "probe" data collection is a set of
relatively low-cost methods for obtaining travel time and speed data for
vehicles traveling along streets, highways, freeways, and other transportation
routes.Three methods have been used to obtain the raw data:
IT is the area of managing
technology and spans wide variety of areas that include but are not limited to
things such as processes, computer software e.t.c
Transport or transportation is the
movement of people and goods from one location to another. Modes of transport
include: air, rail, road, water, cable, pipeline and space. The field can be
divided into infrastructure, vehicles and operations. Transport is important
since it enables trade between people which in turn establishes civilization.
In information technology the modes
of transport have been improved in terms of speed to increase efficiency in
transportation. This is by invention of air transport, road transport, among
others.
Air Transport.
A fixed air wing
air craft commonly called air plane is a heavier than air-craft where movement
of air in relation to the wings is used to generate lift. The air craft is the
second fastest method of transport after the rocket. Aviation is able to
quickly transport people and limited amount of cargo over long distances, but
incur high costs and energy use: for short distances or in inaccessible places.
Rail transport.
Rail transport
is where a train run along a st of two parallel steel rails known as railway or
rail road. The rails are anchored perpendicular to ties of timber, concrete, or
compressed earth and gravel in a bed of ballast. A train consists of or more
connect vehicles that run on the rails. Locomotion is enabled by steam or
diesel but has lately been improved by the technology to as far as
electrically enabled locomotion. Also, a train can be powered by cables,
gravity, pneumatic and gas turbines. The modern high speed rail is capable of
speeds up to 350 Km/h, but this requires specially built track.
Road transport
Roads are
typically smoothened paved, or otherwise prepared to allow easy travel. The
most common road vehicle is the auto mobile; a wheeled passenger vehicle that
carries its own motor.
As of 2002,
there were 590 million auto mobiles worldwide. Auto mobiles offer high
flexibility and with low capacity. In road transport there has been usage of
fuel in motor vehicles to facilitate movement but of late there has been the
invention of the electric vehicles : for example in Makerere University in
Uganda.
Water transport
Water transport
is the process of transport a water craft, such as sea, ocean, lakecanal or
river. The need of buoyancy unites watercraft, and makes the hull a dominant aspect
of its construction, maintenance and appearance. In 19th century the
first steam ships were developed using a steam engine to drive a paddle wheel
or propeller to move the ship. Then steam was produced using wood or coal. Now
most ships have an engine using a slightly refined
type of petroleum called bunker fuel. Some ship such as submarines, use
nuclear power to produce the steam
Other modes of
transport:
1. Pipeline transport
2. Cable transport-: a broad mode where
vehiclesare pulled by cables instead of an internal power sources
3. Spaceflight-: transport out of earth’s
atmosphere into outer space by means of spacecraft.While large amount of
research have gone into technology, it is
rarely used except to put satellites into orbit, and conduct scientific
experiments.
Applications of
IT in transport:
Floating car data/floating cellular
"Floating car" or "probe" data collection is a set of
relatively low-cost methods for obtaining travel time and speed data for
vehicles traveling along streets, highways, freeways, and other transportation
routes.Three methods have been used to obtain the raw data:
ü
Triangulation Method. In developed
countries a high proportion of cars contain one or more mobile
phones. The phones periodically transmit their presence information to the
mobile phone network, even when no voice connection is established. In the mid
2000s, attempts were made to use mobile phones as anonymous traffic probes. As
a car moves, so does the signal of any mobile phones that are inside the
vehicle. By measuring and analyzing network data using triangulation,
pattern matching or cell-sector statistics (in an anonymous format), the data
was converted into traffic flow information. With more congestion, there are
more cars, more phones, and thus, more probes. In metropolitan areas, the
distance between antennas is shorter and in theory accuracy increases. An
advantage of this method is that no infrastructure needs to be built along the
road; only the mobile phone network is leveraged. But in practice the
triangulation method can be complicated, especially in areas where the same
mobile phone towers serve two or more parallel routes (such as a freeway with a
frontage road, a freeway and a commuter rail line, two or more parallel
streets, or a street that is also a bus line). By the early 2010s, the
popularity of the triangulation method was declining.
ü
Vehicle Re-Identification. Vehicle
re-identification methods require sets of detectors mounted along the road. In
this technique, a unique serial number for a device in the vehicle is detected
at one location and then detected again (re-identified) further down the road.
Travel times and speed are calculated by comparing the time at which a specific
device is detected by pairs of sensors. This can be done using the MAC (Machine
Access Control) addresses from Bluetooth devices, or using the RFID serial
numbers from Electronic Toll Collection (ETC) transponders (also called
"toll tags").
ü
GPS Based Methods. An increasing number
of vehicles are equipped with in-vehicle GPS (satellite navigation) systems
that have two-way communication with a traffic data provider. Position readings
from these vehicles are used to compute vehicle speeds.
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