NEC 2013 Annual Report Download - page 33

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Facilitating Real-time Information Provision with
High-speed Processing of Big Data
Expressways already deploy traffic counters, rain, wind,
and other weather information sensors, seismographs,
boards that inform drivers about traffic conditions, and
other facilities.
The Shin-Tomei Expressway offers vastly improved
equipment for inputting and outputting information. For
example, traffic counters are positioned at intervals of one
kilometer, compared with two-kilometer intervals on the Tomei
Expressway. Furthermore, data are collected every minute on
the Shin-Tomei and Tomei expressways. For this, much
greater processing power is required.
NEC’s Big Data processing technologies process the huge
amounts of collected data, delivering information almost in
real time to drivers through road information boards, highway
radio transmissions, Vehicle Information and Communication
System (VICS*)-enabled car navigation systems, service area
information terminals, and other means.
A Grandstand View of Tomei and Shin-Tomei
Expressways’ Road Conditions on a Giant Screen
At its Tokyo control center, NEXCO Central installed a 4 meter
by 18 meter display that comprises 64 46-inch LCDs.
Screens show conditions on the Tomei Expressway,
Shin-Tomei Expressway, and related highways that the
center controls. They also show at a glance and in real time
where accidents, congestion, weather changes,
earthquakes, or other phenomena have occurred.
Traffic controllers keep tabs on constantly changing
information on screens, issuing accident response and traffic
restriction instructions as needed to locations.
Quick and Stable Collection, Processing and Provision of
Various Information via Optical IP Networks
The speed of networks underpinning new traffic management
systems has been accelerated using optical IP technologies
so they can gather, process, and rapidly deliver vast amounts
of information.
Furthermore, innovations in network structure create a
framework in which communications remain stable even if
failures occur.
We are also constructing backup systems so that if the
Tokyo control center goes down in a major disaster,
counterpart centers can take over its tasks.
Aiming to Realize Safe, Secure and Comfortable
Transportation Infrastructure
It is said that effectively harnessing Big Data and networks
can contribute to resolving various issues arising from
motorization, including increases in traffic accidents,
congestion, and air pollution. NEC will take even more
advantage of its expertise in using such tools to pursue
the challenge of creating new value and thereby contribute
to the realization of safe, secure, and comfortable
transportation infrastructure.
The giant screen at the control center
Traffic information is provided by information terminals
at service areas
* VICS (Vehicle Information and Communication System): An information and communication system that communicates congestion, traffic restrictions and other road
traffic information in real time and displays text and graphics on car navigation systems and other in-vehicle devices.
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NEC Corporation
Annual Report 2013
II
Sustainable Development