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If the network utilization rate exceeds the safety limit, there will be some problems such as the network speed slow down suddenly and delay increasing greatly.
Load different application traffic flux in the two scenarios.
From Fig. 3, we can see that the network load is very big when high traffic load is added to, and it will lead to increasing the server processing time delay.
Ashish: Journal of Urban Planning and Development.
Amer: International Journal of Factory Automation, Robotics and Soft Computing.

"Reducing earthquake disaster" has become a major issue and arosed international concerns.
Wang: Bridge damping design (People Traffic Press, Beijing 2001)
Journal of Highway and Transportation Research and Development Vol.26 (2009), p. 100-104 [6] J.
JTG/T B02-01-2008 Guidelines for seismic design of highway bridges (People Traffic Press, Beijing 2008)
Journal of Xi' an University of Technology Vol.19 (2003), p. 13-17

A summary of the majority of international methods for the evaluation of roundabout capacity is represented in [1].
Traffic assignment.
Cunto: Comparing Safety at Signalized Intersections and Roundabouts Using Simulated Rear-End Conflicts - Transportation Research Record, Journal of the Transportation Research Board, Vol.2078(2008), pp.90-95
Vitale: Safety performance measures: a comparison between microsimulation and observational data – Procedia Social and Behavioral Science, 20 (2011), pp.217–225
Iuele: Simulation of Observed Traffic Conditions on Roundabouts by Dedicated Software – SIIV, 5th International Congress, Sustainability of Road Infrastructures Procedia, Social and Behavioral Science, (2012), pp., in press

Food Safety Rapid Analyzer.
Journal of Soil and Water Conservation.
Journal of Wuxi University of Light Industry.
Journal of Yunnan Agricultural University.
Journal of China Agricultural University.

At the same time, the effect of rainfall intensity change on the slope failure mode and safety coefficient was analyzed.
Safety coefficient of carbonaceous mudstone embankment slope gradually decreases with the rainfall continuing, potential sliding surface also have the tendency of extending into the embankment.
Acknowledgements This work was financially supported by the national natural science foundation (51078042),the hunan science and technology plan project(2011FJ3114)and the western traffic science and technology plan project (2009 318 000 048).
Reference [1] Qiang Cheng, Xiaobing Kou, Shaobin Huang:Journal of engineering geology, vol.34-40 (2004) ,p.12.
[5] Fredlund.D.G,Vanapalli.S.K,xing A,etal:Predicting the shear strength function for unsaturated soil using the soil-water characteristic curve.Proceedings of First International Conference on Unsaturated Soil (I) Paris :International Academic Publishers,189-193(1995),p.

The decrease of vibrations to an acceptable level in terms of running behavior, safety, passengers comfort and track fatigue is required by regulations at European level for vehicle homologation and their admission into traffic.
Since the railway traffic is greatly growing, it needs a special attention to solve the new problems arising from this situation.
Regarding the vibrations, the actual international technical literature especially presents two main approaches.
International Journal of solids and structures (2002)
Metrikine, Periodically supported beam on a visco-elastic layer as a model for dynamic analysis of a high-speed railway track, International journal of solids and structures, (2003)

Introduction With the rapid development of the world economy, vehicle amounts increase greatly, which brings more and more safety problems for road traffic.
A large number of road traffic accidents have brought great loss of life and property as well as great many social problems.
[2] Jingan Huang: Kinetic Analysis and Research on Reconstraction of Road Traffic Accident.
[3] Jian Zhang, Changhua Kang: Journal of Beihua University.
[4] Dario Vangi: International journal of impact engineering.

With the rapid development of the Internet of things, it has been applied widely, has been used in the public security, intelligent traffic, environmental protection, human production and every field of life.
At present domestic has begun to M2M mode of networking pilot, such as wisdom city, intelligent traffic and intelligent home furnishing.
Therefore, safety is an important problem in the Internet of things.
Reference: [1] International Telecommunication Union.
Journal of Tsinghua University (Science and Technology), 2011,51(10):1035-1040 [8] Wang Jian-zhou.From Internet to “Internet of things”[J].Communication World, 2009,33:09-13.

Trainees are able to practice navigation skills in a variety of river conditions and understand the dynamics of inland waterway traffic.
„Performance assessment in full-scale simulators - A case of maritime pilotage operations“, Journal of Safety Science, 2020
“Deep learning elements in maritime simulation programmes: a pedagogical exploration of learner experiences”, International Journal of Educational Technology in Higher Education, 2021
[8] Park Y., A study on the standardization of education modules for ARPA/radar simulation, Journal of the Korean Society of Marine Environment & Safety, 2016
Seeking the Best Practices of Assessment in Maritime Simulator Training, Journal on Marine Navigation and Safety of Sea Transportation, 2023

All of this were to provide basic platform which to change the passive situation in the study of the international shipping-bridge crash testing [1][2].
The safety problem could be solved at the same time.
High-accuracy, fast running speed international cutting-edge products had been used in the system to make the process stable and fast, meet the requirement of acceleration in different speeds and different distance.
Acknowledgements It is funded by the National Science and Technology Action Plan Project (2009BAG13A02), JingZhu double-line Changsha to Xiangtan Highway Resource-saving and Environment-friendly Technology Demonstration Projects (Traffic and Transport Department Traffic and Transport Science and Technology[2009]NO 333).
[2] Sujuan Wang, Zhengbao Lei, Jian Zhao: Journal of Vibration and Shock, Vol. 28(2009), p. 181-186