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201.
The European Community has provided valuable support to short sea shipping through various programs and legislation. This
paper analyses the situation while focusing on the Mediterranean Sea and suggests solutions for addressing the short sea shipping
problems in this special region. The biggest challenge for all sides in the comingyears will be the replacement of the existing
fleet. The study presented herein gives an insightful and collective picture of the situation, while focusing on the Greek
owned short sea vessels. 相似文献
202.
This study performs a comparison between what occurs when braking on a Ministry of Transport (MOT) brake tester and on flat ground. The tire pressure is changed, but the other parameters remain constant. The results from this research and from the in-depth comparative study conducted by the mechanical engineering staff in the mechanical laboratory at the Miguel Hernández University in Elche have led to the following main conclusions: By varying the tire pressure, false results can be obtained with the MOT brake tester, which means that, if the tires are inflated at a low pressure but the brakes are in good condition, the vehicle will not pass the MOT. Conversely, if the brakes are in poor condition but the tire pressure is higher than what is recommended by the manufacturer, a false pass is produced. This article shows that the MOT brake testing equipment is often wrong and inexact, and the data and graphs presented prove that the tire pressure is a determining factor when assessing the condition of brakes. 相似文献
203.
The train standing-time at a station is a determinant of the line capacity and the necessary fleet-size. Its determination is usually based on the assumption that boarding and alighting is uniform at all doors of a train. Uniform boarding and alighting is conceivable if passengers distribute themselves uniformly on station platforms while waiting for trains. The validity of the uniformity assumptions is tested using data from two stations (one CBD, one suburban) of the Calgary, Alberta LRT system. It is shown that passenger distribution on the platform, alighting and boarding is not uniform and is closely related to the location of platform access points. Some strategies that will encourage uniformity are discussed. However, procedures that can estimate the standing time for non-uniform boarding and alighting need to be developed. 相似文献
204.
Thomas B. Deen 《Transportation》1984,12(3):195-209
The highway industry in the United States spends about $35 to $40 billion annually. Management of the industry is almost wholly decentralized. This decentralization plus diminishing fuel tax revenues used to finance road improvements have caused road research efforts to decline to a very low level. Comparisons between funds for highway research and those spent by private firms in similar industries show that private firms spend from 5 to 12 times the rate of highway agencies. The problem of how much to spend on research is difficult both for private-sector and for public-sector enterprises. The level of research spending is shown to correlate well with both profitability and growth in U.S. firms. Four methods used for making research decisions in the private sector are discussed. The goals of the Strategic Transportation Research Study (STRS), which is being conducted by the Transportation Research Board to examine highway and transportation needs, are described. 相似文献
205.
B. J. Thomas 《Maritime Policy and Management》1981,8(3):141-161
This paper examines the impact the changing maritime technology has had on the structure and development of the UK port transport industry. In particular, it describes the major institutional changes that have occured in response to technological and other developments and the influence these have had on the cost structure of individual stevedoring operators. Finally, it describes the resultant pricing policies adopted by stevedores and concludes that these have been exacerbated by the failure of successive governments to adopt sound and consistent policies towards the industry. 相似文献
206.
207.
R. B. Richardson 《Maritime Policy and Management》1977,4(4):203-208
Although considerable progress has recently been made in the evolution of marine traffic procedures in coastal and waterway areas, mariners are finding difficulty in coping with the diverse traffic schemes that have so far been devised. This paper is a plea for international and logical marine traffic management, so that ships can operate safely and efficiently within a framework of the proliferating offshore zonal legislation that we are now witnessing. 相似文献
208.
C. E. M. Pearce 《Transportation Research Part B: Methodological》1981,15(6):427-435
An analytical study is made of the determination of the travel intensity at an arbitrary point of a city with a straight line barrier. For a given origin and destination a trip is made by the shortest path not crossing the barrier or the city perimeter. The joint trip end distribution is arbitrary except for a continuity assumption. 相似文献
209.
E. C. Mikulcik 《Vehicle System Dynamics: International Journal of Vehicle Mechanics and Mobility》1980,9(5):281-289
The characteristic equation for a simple automobile-trailer combination is analyzed, revealing the parameter groups which are important in determining the stability characteristics. Application of Routh's method results in separate criteria for oscillatory and non-oscillatory criteria which can be evaluated algebraically, and which can also be displayed graphically showing a region of stability on a two-dimensional plot. The stability region is bounded by limits of oscillatory and non-oscillatory stability, and the evaluation of a specific case corresponds to the location of a point relative to the boundaries. 相似文献
210.
Okechukwu C. Iheduru 《Maritime Policy and Management》1993,20(1):31-49
While recognizing the need for increased participation of the private sector in the maritime industry of developing countries, there is a need to go beyond the call for privatization in terms of mere change of ownership from state to private sector as the only solution to the inefficiency of the maritime industry in developing countries. This limited understanding of the maritime problems of these countries abounds in the literature on maritime privatization. This study departs from this approach and focuses on the political economy of the maritime industry, and suggests that maritime privatization will not necessarily result in increased efficiency of the divested maritime enterprises. Rather, it argues that maritime problems in these countries have less to do with ownership than with the structural constraints in world shipping together with internal management and local ~olitics. The maritime industrv in West and Central Africa is used as a case studv. and recommendations such as selective privatization, 'programme contract', and most importantly, corporatization, are suggested as alternative strategies that could enhance maritime privatization and the development of the maritime industry in developing countries. 相似文献