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Main Part Airfield and highway pavements throughout their entire life cycle are constantly exposed to a large number of negative factors that affect their technical condition and, as a consequence, ensure flight and traffic safety [5-9].
Pavement Mechanics and Performance, GeoShanghai International Conference.
Journal of Composites for Construction, 6(3) (2002) 175‒183
In: Tenth International Conference Structural Faults and Repair Proceed, 2003
International Journal of Applied Mechanics and Engineering, 11(3), (2006) 479‒490.

Second International Conference on Environmental and Computer Science (2009)
Journal of Occupational and Environmental Hygiene. 8:9 (2011) 544-550
Zhang, Respiratory effects of exposure to diesel traffic in persons with asthma.
The New England Journal of Medicine. 357:23 (2007) 2348-2358
Meo, Lung function in Pakistani wood workers, International Journal of Environmental Health Research. 16:3 (2006) 193-203.

(4) network-traffic-analysis-based Intrusion Detection Technology, in this program, abnormal network traffic can be predicted and detected at each node based on traffic, intrusions can be determined by statistical analysis and technical analysis of the threshold.
[7] Tao Feng, Jianfeng Ma: submitted to Journal on Communications (2008), In Chinese
[18] Shen Y L, Pei Q Q, Ma J F: submitted to CHINESE JOURNAL OF COMPUTERS (2007), In Chinese
[19] Guo Jianghong, Ma Jianfeng: submitted to Journal on Communications (2011), In Chinese
[20] Yang Y, Littler T, Sezer S, et al: 2nd IEEE PES International Conference and Exhibition (2011), p.1-7.

A traffic accident occurred on a long span bridge induced by strong wind is shown in Fig.1.
Wind induced traffic accident occurred on a long span bridge Numerical simulation of wind environment above the deck Project overview.
References [1] Dalei Wang, Research on wind-induced driving safety on bridges.
Barker, Design of wind screens to bridges; experience and applications on major bridges, in: Bridge Aerodynamics: Proceedings of the International Symposium on Advances in Bridge Aerodynamics, edited by Allan Larsen, S.
Vol. 92 (2004), p. 609 [5] Airong Chen, Dalei Wang, Jiabin Pang: Bridge Construction Vol. 171(3) (2006), p. 1 (In Chinese) [6] Qiwei Zhang, etc., Research on key structural mechanical performance and structural safety on Zhengxin Yellow River Highway-railway Bridge, CN: Tongji University. (2010) (In Chinese) [7] Qinghe Meng: Journal of Shijiazhuang Railway Institute (Natural Science) Vol. 22(4) (2009), p. 56 (In Chinese)

Introduction In recently, with the problems of traffic congestion and energy shortage worsening, bike with its convenient and economical advantages, has been paid more and more attention to [1-3].Assisted bicycle is configured of drive means on the basis of the bicycle.
Since the Q235 hardness less than 350HBS, the value of N0 is 107.According to equation 2-1: (2-2) Sr presents the safety factor [8], which the value is 4.
Considering the postal assisted bicycles may be overloaded sometimes, the improvement of the frame will be studied trying to improve its safety performance.
International Journal of Fatigue, 2002, 24 (11): 1149 -1157
[4] Lothar Issler, Wolfgang Weise, Udo Merk, Investigation of the fatigue behaviour of a mountain bike steering bar , Materialpruefung/Materials Testing, 2007, 49(1-2): 25-30 [5] ZOU Zhun,YUAN Xiang-kai,YU Mu-huo, Finite element analysis for carbon fiber bicycle frame, Design and Research[J],2011,38(9):4-7 [6] Xu Wen, the bicycle rider design method research and application considering the posture: [Master degree thesis], Tianjin: Tianjin University ,2007 (in Chinese) [7] GB 3565-2007,Safety requirements for bicycles,2005(in Chinese) [8] Department of Mechanical Parts of Tianjin University,Mechanical Parts,Tianjin:Tianjin Science and Technology Press,1983(in Chinese)

Discussion on application of situation awareness in power system Qin Lijun1, a, Zhai Xiongfei2, b 1North China Electric Power University, Beijing, China, 102206 2North China Electric Power University, Beijing, China, 102206 a, b email: zhaixiongfei0915@126.com Key word: Smart grid, Situation awareness, Grid safety.
Real-time situation comprehension: Integrating the data and information which we acquired or perceived, then making the situation assessment, establishing the comprehensive evaluation of the power grid safety status by comprehensive analysis and judgment.
By extracting those data that have a significant impact on the power grid from large amounts of data, evaluation system weaknesses and to provide early warning of potential safety problems.
Journal of the Academy of Equipment Command & Technology 2010, 21(2), 41-46
Visualization of power system data[C]// Proceedings of 33rd Annual Hawaii International conference on System Sciences, January 4-7, 2000, Hawaii, USA: 7P

After ten years of service, the static and dynamic tests to evaluate the bridge safety were required and finished in June 10 to 15, 2011.
Journal of Sound Vibration; 2005, 282 (5): 805–830
ASCE Journal of Bridge Engineering; 2006, 11(4): 410-419
International Journal of Structural Stability and Dynamics, 2010, 10(3):529-554
Journal of bridge engineering. 2011, 16(3):400-412.

And the concentration is low when there is less traffic.
Exposure-response relationship derived from international epidemiological studies is adopted to estimate the health loss caused by airborne particulates [7].
a) Willing to pay (WTP) Willing to pay measures the monetary value that people are willing to pay for the improvement of the safety of themselves and the others.
Road-related air pollution health risk assessment can be made based on the international accepted method of quantitative evaluation of risk, combined with the population health endpoints in the road area.
Economic loss analysis of urban air pollution in regional center of Shaanxi Province, Journal of Geography and the Environment，2006, pp. 34-38.

Technology for Locating System of the Laying Pipe Manipulator Dan Wang1,2,a , Hongyi Liu1,b and Bin Li2,c 1 School of Mechanical Engineering and Automation, Northeastern University, Shenyang liaoning 110004, China 2 Traffic &Mechanical Engineering School, Shenyang Architecture University, Shenyang liaoning 110168, China awangdan_17@sjzu.edu.cn,b liu140845@yahoo.com.cn,clibin@sjzu.edu.cn Keyword: Laying pipe manipulator, Locating system, Photoelectric target Abstract.
The laying pipe manipulator is used to lay concrete pipe, and it solves the question of safety, quality, and efficiency in the pipe laying construction site, and the critical question of locating system is studied.
Bernold: 8th International Topical Meeting for Robotic and Remote Systems (Pittsburgh, America, October 11-13, 1998), pp.237-243
Li: 19th International Symposium on Automation and Robotics in Construction (Gaithersburg , America ,April 20-22,2002), pp.296-301
Bernold: International e-Journal of Construction (Gainesville, America, August 4-6, 2005) Vol. 13, pp.1-6.

This, in order to further comprehensive state evaluation of bridge in service, Text involved in old bridge reinforcement efficiency indicators, Through the analysis of detailed and in-depth study strengthening economic indicators, Precision to achieve the purpose of the comprehensive state assessment of Bridges in service, And do it in as much as possible to ensure the safety of Bridges and reduce maintenance funds. 1.
Reducing traffic capacity will cause considerable economic losses to related industries, determined by expert evaluation method.
Floor system renovation of pavement, etc., belong to repairing work, generally required to limit the traffic, and even interrupt the traffic.
Economic losses from the cost of maintenance and the resulting traffic jam or interruption must be taken into consideration. 1.5 Economic influences of environmental pollution dealing cost to reinforcement of in-service bridges Environmental pollution including vehicle emissions of exhaust gas to human health, vegetation and bridge structure damage, Traffic noise and vibration damage, vehicle tire and bridge deck wear of the powder dust hazards, etc.
Journal of Chang’an University(Natural Science Edition 2004,5:135 [4] Peilun Ye,Yanan Yu.