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1 – 10 of 790Haoxiong Yang, Lijun Sun, Shulin Lan and Chen Yang
Many cities implement freight traffic restriction policy (FTRP) intending to reduce traffic congestion and air pollution. At the same time, city distribution had some negative…
Abstract
Purpose
Many cities implement freight traffic restriction policy (FTRP) intending to reduce traffic congestion and air pollution. At the same time, city distribution had some negative effects. The purpose of this paper is therefore to study the freight group behavior under FTRP, and to provide some recommendations for the government.
Design/methodology/approach
This paper establishes a city distribution system model built by a simulation method of Agent, which includes the complex adaptability of freight individual, event of restriction policy, the influence factor of freight group behavior and its changes from the perspective of restriction policy. The rules of microscopic freight group behavior to macroscopic freight group behavior, the effects on freight group behavior exerted by restriction policy and the dynamic mechanism of freight group behavior are all studied. The model is also simulated with the traffic data of Beijing in China.
Findings
Theoretical results ensure that restriction of the passport is not the sole reason that may produce illegal trucks, and other measures need to be taken to solve the traffic problems. And in the long run, increasing fines has a greater effect than strengthening supervision frequency on illegal trucks reduction.
Originality/value
From city distribution perspective, this paper studied freight group behavior under FTRP. This paper also applied the Agent modeling method to build a model of urban distribution system in the FTRP.
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Kazuaki Miyamoto, Surya Raj Acharya, Mohammed Abdul Aziz, Jean-Michel Cusset, Tien Fang Fwa, Haluk Gerçek, Ali S. Huzayyin, Bruce James, Hirokazu Kato, Hanh Dam Le, Sungwon Lee, Francisco J. Martinez, Dominique Mignot, Kazuaki Miyamoto, Janos Monigl, Antonio N. Musso, Fumihiko Nakamura, Jean-Pierre Nicolas, Omar Osman, Antonio Páez, Rodrigo Quijada, Wolfgang Schade, Yordphol Tanaboriboon, Micheal A. P. Taylor, Karl N. Vergel, Zhongzhen Yang and Rocco Zito
Rong ZHANG, Jing FAN and Feng-yuan ZHU
Purpose – This chapter reviews the provision for freight transport in Shanghai, and makes recommendations for the development of road freight including the aspects of optimizing…
Abstract
Purpose – This chapter reviews the provision for freight transport in Shanghai, and makes recommendations for the development of road freight including the aspects of optimizing the port transportation system, strengthening the planning and construction of freight terminals, promoting the formation of a city distribution system, adjusting downtown traffic policies, and promoting the provision of road freight information systems.
Methodology – Based on primary data and observation, this chapter describes the status of road freight in Shanghai and details existing problems. Based on experience elsewhere it then proposes changes in policy.
Findings – This chapter proposes some recommendations as follows: optimizing the collection and distribution system of the Shanghai port, planning, and construction of road freight terminals, adjusting the freight traffic policy in the central area and improving the performance of freight firms.
Implications – These recommendations, based on good practice elsewhere, should both enhance the efficiency of road freight in Shanghai and reduce its environmental impacts.
Value of chapter – The study will help the sound and orderly development of Shanghai's road freight transportation, better satisfy the needs of the people, and promote the development of Shanghai economy.
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Genevieve Giuliano, Burkhard E. Horn, Hirokazu Kato, Masanobu Kii, Yoshikuni Kobayashi, Dominique Mignot, Kazuaki Miyamoto, Akira Okada and Daniel Sperling
Leorey Marquez, Nariida Smith, David Kilsby, Mike Taylor and Rocco Zito
A study to investigate the sensitivity of urban freight patterns to various greenhouse abatement policy measures is underway with Metropolitan Sydney being used as the case study…
Abstract
A study to investigate the sensitivity of urban freight patterns to various greenhouse abatement policy measures is underway with Metropolitan Sydney being used as the case study area due to the availability of detailed freight and passenger network level data and models at the New South Wales Transport Data Centre (TDC). The study is designed to build on methodologies under development by TDC to derive freight traffic due to total requirements for freight and relative requirements for categories of goods from actual or forecasted commodity flows and associated information. This paper describes the selection of candidate policy measures for investigation and presents the methodology and processes used in modelling their impacts on urban freight patterns. The discussion will focus on six scenarios which provide policy instruments for application to a 1996 base case. Some results of the modelling of these scenarios will then be presented and issues arising from the study discussed. Special attention will be given to the relative changes in travel characteristics and emissions brought about by these instruments.
Bo Jiang, Changhai Tian, Jiehang Deng and Zitong Zhu
This study aims to analyze the development direction of train speed, density and weight in China.
Abstract
Purpose
This study aims to analyze the development direction of train speed, density and weight in China.
Design/methodology/approach
The development of China's railway in the past 40 years can be divided into 3 stages. At the stage of potential tapping and capacity expansion, it is important to improve the train weight and density by upgrading the existing lines, and improving transportation capacity rapidly. At the stage of railway speed increase, the first priority is to increase train speed, reduce the travel time of passenger train, and synchronously take into account the increase of train density and weight. At the stage of developing high-speed railway, train speed, density and weight are co-developing on demand.
Findings
The train speed of high-speed railway will be 400 km h−1, the interval time of train tracking will be 3 min, and the traffic density will be more than 190 pairs per day. The running speed of high-speed freight EMU will reach 200 km h−1 and above. The maximum speed of passenger train on mixed passenger and freight railway can reach 200 km h−1. The minimum interval time of train tracking can be compressed to 5 min. The freight train weight of 850 m series arrival-departure track railway can be increased to 4,500–5,000 t and that of 1,050 m series to 5,500–6,400 t. EMU trains should gradually replace ordinary passenger trains to improve the quality of railway passenger service. Small formation trains will operate more in intercity railway, suburban railway and short-distance passenger transportation.
Originality/value
The research can provide new connotations and requirements of railway train speed, density and weight in the new railway stage.
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Daniele Patier and Jean-Louis Routhier
This paper provides an extensive review of surveys and data-collection programmes focused on urban goods movement (UGM). Surveys investigating passenger urban travel have a…
Abstract
This paper provides an extensive review of surveys and data-collection programmes focused on urban goods movement (UGM). Surveys investigating passenger urban travel have a decades-long tradition. The same is not true for UGM. The first specific UGM surveys appeared about 10 years ago in response to the rapid growth of car traffic, congestion, pollution and lack of space. Most of the time, these surveys have been carried out to resolve specific, local problems concerning traffic. Only a few of them have taken a global approach to urban logistics by including all logistics operators (own-account and carriers), all delivery vehicles (heavy and light vehicles), all deliveries and pickups (from express to full payload) and an entire metropolitan area and surroundings. Due to various European programmes, an inventory has been created to analyse urban goods data collection according to spatial level and methodology of capture. With this inventory, European urban freight indicators can be described, along with the units in which they are measured and their purposes. The relevance of urban goods transport surveys lies in their capacity to give decision-makers an account of urban freight transport functioning, ratios and data, so as to help in formulating planning, regulation and forecasting. It appears that focusing on the movement (delivery/pick-up), as the unit of analysis in establishment-driver surveys is the most efficient approach to describe the generation of vehicular flow in the city. This fact is revealed in the French UGM surveys, which take into account the complexity of urban logistics.