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Include professional team, education training, safety management, system maintenance, standard and interoperability specification, relevant laws and regulations and so on [2].
The basic framework of digital city construction To sum up can be divided into five aspects: (1) promoting informatization construction, making the government's macroeconomic regulation and control mechanism and training competition mechanism to achieve the unity of the organic, forming a fair and orderly market order. (2) strengthening the policy laws and regulations construction, reflect management consciousness, realize the sustainable development. (3) building geographic information system basic data platform, the promotion of basic information resources sharing. (4) establishing emergency linkage command and intelligent traffic management two comprehensive application system, leading to a number of industry information system construction basic education informatization. (5) training information talent for constructing the learning-type city services. [3] Digital City Geospatial Framework Construction According to the geographical space frame basic regulations (CH/T 9003-2009),
[J].Journal of Guangdong Institute of Finance and Commerce Management, 2001(1):20-24
International archives of photogrammetry and remote sensing, Vol.XXX, Part 3A,2009

Any structural deficiency or damage on the bridge may pose a significant danger to the general public, cause traffic disruption and increase the maintenance cost.
[3] BS EN 1991-2: 2003, Eurocode 1: Actions on structures – Part 2: Traffic loads on bridges, European Committee for Standardization, Sept 2003
Fonseca, Vehicle Collision with Bridge Piers, Journal of Bridge Engineering, ASCE, Vol. 10, No. 3, May-June 2005
Gardoni, Performance-based Response Evaluation of Reinforced Concrete Columns Subject to Vehicle Impact, International Journal of impact Engineering, 43, 2012, pp. 52-62
Mongiardini, Impact Analysis of a 16t Truck Against Different Road Safety Restraint Systems, 5th European LS-DYNA Users Conference, Birmingham, UK, 25-26th May 2005

Introduction With the rapid development of the city and the growing popularity of car, the traffic jam appears in some cities.
The metro has advantages of large capacity, fast speed, safety, on time arrival, low pollution, low energy consumption, convenient and comfortable, so it is called "Green Transport".
According to International Organization for Standardization’s provision, suspended solids whose particle size less than 75μm is defined as dust.
Parameter of the air compressors and vacuum cleaner was selected by the calculated data, and then multiply the safety factor to ensure dusts can be inhaled in the pipelines.
Journal of Chongqing University of Technology (Natural Science), 2011, 25 (5) :13-17

And the motor regenerative ability depend on state of charge(SOC) of battery, brake strength and brake pressure regulating device such as ABS. the regenerative braking should be recycle more energy at precondition of brake safety and riding comfort.
And the coordinate control between ABS and regenerative braking has direct relation with vehicle safety.
Optimium group of inertia flywheels in brake test bench for automotive and tractor[J].Journal of Jinlin University of Technology, Feb,1995 (in Chinese)
Development of a single wheel Anti-lock Brake System Test Bench[C].International symposium on traffic information and logistic engineering, Changsha China, 13-14.Oct.2010 [4] Zhang biao,Liu zhaodu,Li zhiyuan, et al.

For a correct management of pedestrian flows, under regular or safety-critical situations, a deep understanding of individual and crowd dynamics is crucial.
However, the Stokes number for unidirectional traffic is much less than for multi-directional traffic.
Jenkins, Response of pedestrians to traffic challenge, Transportation Research 8 (1974) 71-74
Wolf (Eds.), Traffic and Granular Flow´05, Springer, Berlin, 2007, pp. 357–362
Miguel, Natural flow systems: acquiring their constructal morphology, International Journal of Design & Nature and Ecodynamics 5 (2010) 230-241 [32] A.

The prices of foreign iron ore raise increasingly, domestic discovery of large reserves of iron ore mines are mostly in remote mountainous areas of the traffic inconvenience and complex terrain, and many of the mine is located in the National Nature Reserve.
Journal of hydrodynamics, 16(3):304-310(2001)
Chinese journal of mechanical engineering, 38(10):13-16(2002)
The 3rd International Symposium on Knowledge Acquisition and Modeling. pp.192-195(2010)
The 3rd International Symposium on Knowledge Acquisition and Modeling. pp.196-198(2010).

Journal of Monetary Economics, Vol.32, (1993), pp. 417-458
Canadian Journal of Economics,Vol.37, (2004), pp.742-756
Journal of Monetary Economics, Vol.34(2), (1994),pp.143-73
Quarterly Journal of Economics, Vol.70 (1), (1956), pp.65-94
Journal of Political Economy, Vol.98, (1990)

The cableless pipeline inspection robot is a hot topic in current domestic and international oil and gas pipeline in the research of special robot.
Oil and gas pipelines are mostly buried in the ground or ocean, the complex geological surrounding easily cause pipelines corrosion, oil and gas leaking and explosions and other accidents frequently which result in irreparable losses to the economy, environment and personal safety.
Analysis of Domestic and International Technology of Pipeline Robot Foreign pipeline inspection robot technology has been developed rapidly in the early 1990s and is close to the application level.
Journal of Machine Design,2010.12 (In Chinese) [7] Wang Zongwei:.
Journal of Mechanical Engineering,2010.11 (In Chinese)

In order to ensure the safety of construction and reduction of environmental impacts while shield tunnelling, a comprehensive monitoring system was carried out during construction, which included ground settlements, displacements and deformations of installed linings and so on.
Introduction With China’s fast economic growth in recent years, lots of under-river tunnels are under construction or plan in order to solve the traffic problems in urban areas [1].
The Qing-chun Road Cross-river Tunnel, which was planned in 2003 and completed and opened to traffic in 2010, is the first experience of slurry shield tunnelling in Hangzhou soft ground, and also the first road tunnel under the Qiantang River.
Observed and calculated pore pressure and deformations induced by an earth balance shield: discussion[J].Canadian Geotechnical Journal, 1995, 32(1):181-189
Proceedings of 7th International Conference on Soil Mechanics and Foundation Engineering.

Reflection on China’s development of low-carbon logistics Yanmin Yuan and Yu Zhao School of Traffic and Transportation,Beijing Jiaotong University,Beijing,China Yuanyanmin_1990@126.com,11121021@bjtu.edu.cn Keywords: logistics ,low-carbon,transportation,emission Abstract.
This paper first introduces the environmental backgroud and international situation of China’s logistics industry.
The rising cost makes the logistics enterprise's own interests also facing a severe test.Besides,The international community’s increasingly stringent requirements for carbon emissions,for example the"Green Sky" program launched by the EU in 2008 has brought a significant impact on China's aviation industry,and the propesed of “carbon footprint”, “carbon tariffs”and such concepts present a huge challenge for China's manufacturing industry,which will inevitably impact the logistics industry that is closely linked to it[1].
In the choice of loading and unloading equipment,change to environmental friendly one.Improper operations may cause damage of the goods and thus results to a waste of resources and a production of wastes.It also produces invalid handling,which causes to a waste of staff and excess use of means.So,pay attention to the safety of goods when loading and unloading.
References [1] Li Li, submitted to Journal of Computational sciences and optimization(2011) [2] Liang Han and Xinxin Li, submitted to Journal of Advanced materials research (2011) [3] lu Fan, submitted to Journal of China business and market(2011),In Chinese [4] Cailing He and Cuihua Zhang, submitted to Journal of Value engineering (2010) ,In Chinese [5] Ruiyu Pan, submitted to Journal of E-Business and E-Government(2011) [6] Shan Cai,Sumei Xiao,Yuqiang Shi and Zhaolong Xu, submitted to Journal of E-Product E-Service and E-Entertainment (2010)