8/10/2019 Intelligent Traffic Management System Provides Efficient and Orderly Traffic in Xi'An

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Intelligent TrafcManagement SystemProvides Efcient andOrderly Trafc in Xi'an

Huawei Designs Trafc Surveillance andUnied Data Storage for Xi'an TrafcManagement Bureau

BackgroundXi'an, the capital of many dynasties in Chinas

history, is now one of the country's largest cities and,

with more than 1.2 million vehicles on the roads at

the end of 2011, one of the most congested. As aresult, the Xi'an municipal government developed

a plan to relieve traffic congestion within three

years. The goal was to improve traffic conditions

by managing vehicl es , pedest rians, bicycl is ts ,

and roads; optimizing the traffic management

infrastructure; and building an intelligent traffic

management system.

Key ChallengesA surveillance network was constructed in 2005

to monitor roads and intersections across the city

in an effort to control congestion. A digital video

transmission exchange platform used Digital Video

Recorders (DVRs) to record uncompressed video

at each location. The network failed due to several

shortcomings:

Disparate surveillance sites were unable to

achieve real-time surveillance, quick retrieval,

or video playback

The urban traffic police department consists of 10

service of ces and 11 trafc police brigades, with

12,000 surveillance sites deployed in the main

urban area and on the outskirts of Xi'an. Images

and videos collected at each surveillance site were

stored in separate DVRs, but could not be managed

in a unified manner. Consequently, the original

surveillance system was unable to support real-time

surveillance, quick retrieval, or video playback.

Local storage of surveillance data increased

labor and device costs

The DVRs were not scalable and had limited storage

capacity. A large number of maintenance personnel

In Transportation

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Data can be concurrently written to

multiple hard disks. Central data storage reduces system

construction and maintenance costs.

Hardware and software work redundantly

to upgrade data storage security.

A 32:1 reproduction ratio not only meets

current requirements of trafc surveillance,

but also supports easy upgrades and future

expansion. Easy upgrades were major selling

points for the Xi' an Traffic Management

Bureau.

A 32:1 reproduction ratio not only meets

current requirements of trafc surveillance,

but also supports easy upgrades and future

expansion. Easy upgrades were major selling

points for the Xi' an Traffic Management

Bureau.

Customer Benefts

In October 2012, a television news program

broadcas t a story about Xi 'an's syst em,

describing it as a trafc management model

for all of China. Here are reasons why:

The intelligent trafc surveillance system's

hardware-level storage and management

platform made possible real-t ime service

dispatch and traffic management. This

enabled the Xi'an municipal government

to achieve its goal of relieving traffic

congestion within three years.

The system uses redundancy protection

technology, which transmits videos and

images collected by peripheral units to

the command center, and permits traffic

management personnel to monitor traffic

conditions in real time. As a result, traffic

signals can be adjusted to suit actual trafc

conditions, and trafc police can be assigned

to direct traffic. The system also supports

real-time data retrieval and video playback,

enhancing emergency response.

Huawei installed a customized SANstorage system while considering

the optimum trafc managementservice model, anticipated

efciencies, and user habits. Theintelligent trafc surveillancesystem's hardware-level storage

and management platform

made possible real-time servicedispatch and trafc management.This enabled the Xi'an municipal

government to achieve its goal of

relieving trafc congestion withinthree years. >>

were assigned to regularly inspect and collect data at each surveillance site

and replace faulty or aging devices, which increased labor and expense. The

DVRs had no backup, so when a DVR malfunctioned, stored data was easily

lost, which negatively impacted trafc management and case investigations.

Needed a new, intelligent system

The Xi'an Trafc Management Bureau urgently needed an intelligent trafc

management system to meet the city government's commitments. The bureau

looked for:A system integrated with the original system in order to optimize existing

resources and reduce expenses.A scalable surveillance network with advanced architecture and feature-rich

functions.A Storage Area Network (SAN) to replace the DVRs.

SolutionHuawei installed a customized SAN storage system while considering the

optimum trafc management service model, anticipated efciencies, and user

habits.

The resulting intelligent surveillance network, deployed in a star topology,

consists of video encoders, video servers, and large-capacity Fiber Channel

SAN optical disk arrays in 11 sub-command centers. The network also

includes a digital video storage and management platform to expedite unied

data storage and management. The system supports live video browsing and

real-time video playback. Highlights include:

SAN storage technology supports a variety of hard disks and enough hard

disk channels for future expansion.

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