scholarly journals The transport forecast – an important stage of transport management

Author(s):  
Vasile Dragu ◽  
Oana Dinu ◽  
Cristina Oprea ◽  
Eugenia Alina Roman
Author(s):  
Zhongyang Lu ◽  
Andy H. F. Chow ◽  
Jacky Leung ◽  
Haydn Kwok ◽  
Sammy Cheung

Congestion and traffic-induced air pollution are associated with population growth and economic development. Compared with congestion, there are relatively few studies on modeling and assessment of traffic-induced pollution. This paper presents an empirical assessment and analysis of traffic-induced air pollution with real-world data collected from the Hong Kong Strategic Road Network. The study employed historical data of traffic flows, speeds, and emission of air pollutants collated by the Hong Kong Transport Department and Environmental Protection Department. This paper first reveals the correlation between traffic flows, speeds, and corresponding induced pollutants including nitrogen oxides (NO2, NOX) and carbon monoxide (CO). To gain further statistical insight, a regression analysis was conducted on the flow–speed–emission relationship at three air quality monitoring stations, which revealed the significance of various factors on this relationship. This study contributes to green transport management and urban sustainability.


1953 ◽  
Vol 43 (1-2) ◽  
pp. 30-36 ◽  
Author(s):  
E. S. Staveley

Livy preserves two explanations of the Senatorial decision of 445 B.C. to suspend the election of consuls and to confer imperium consulare upon tribuni militum. One, which he himself accepts, is that it was a political compromise designed to appease agitation for plebeian representation in the consulship. The other is that the military situation demanded the appointment of at least three holders of imperium. Until some forty years ago the majority of scholars, even if ready to admit that the reform had military advantages, joined with Livy in laying the chief emphasis on the political motive. More recently, however, the tendency has been to disown the connection between the innovation and the struggle for office. The change is explained as necessitated wholly by growing military commitments or administrative needs. My purpose here is merely to defend once again the traditional account that the decision of 445 B.C. marked an important stage in the Struggle of the Orders and to remove the major difficulties which have discouraged its acceptance.


Miss Dorothy Stimson, Dean of Groucher College, U.S.A., in an article in Isis for 1 September 1935, tried to traverse the view stated in the Introduction to my Comenius in England (Oxford University Press (1932)), pp. 6-7, that the visit of Comenius (Komensky) to London in 1641-1642 marked an important stage in the development in England of the idea of a great society for scientific research which resulted in the organization of the informal ‘Invisible College’ by Theodore Haak and others in 1645, and prepared the way for the foundation of the Royal Society in 1662. She was however unable to explain away the fact that Theodore Haak, who was one of the most active supporters of Komensky’s plan for a Scientific College in 1641, was in 1645 the virtual founder of the informal ‘Invisible College,’ the precursor of the Royal Society. Miss Stimson stresses the contrast between the universal speculative plan of Comenius as outlined in his Via Lucis (1642), and the empirical and specialized activities of the Invisible College. Miss Stimson however has completely overlooked the fact that John Wilkins (1614-1672), Warden of Wadham College, Oxford, whom she rightly regards as one of the most active members of the Invisible College, held views very similar to those of Comenius on scientific method and on the desirability of a universal language.


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