Klein E.,CETE Est |
19th Intelligent Transport Systems World Congress, ITS 2012 | Year: 2012
Improving the mobility of large urban areas is an exciting challenge that can also address sustainable development issues. With that target in mind, the Great Lyon has decided to experiment a smart network of wireless magnetometers to optimize their road infrastructure use. Sensors will provide volume, speed data and travel times based on vehicle magnetic signature recognition. Those data will feed algorithms aiming at traffic regulation, and one hour traffic prediction giving the opportunity to reduce and delay the congestion.
Bussiere Y.D.,Benemerita University Puebla |
Torres I.E.,University of the Humanities |
Collomb J.-L.,SETEC |
WIT Transactions on Ecology and the Environment | Year: 2010
Cycling in the city, a practice which had been lost progressively since the 1960s with the rapid expansion of the use of the automobile, has recently become common practice in many cities of the North where the bicycle had almost disappeared. Urban speedways and viaducts built in the 1960s are being reconsidered and even destroyed to give place to boulevards and a friendlier urban environment for pedestrians. Many examples are available: Lyon with the introduction of Velo'V in 2005, Paris with the introduction of Veli'b in 2007 and Montreal with the introduction of BIXI in 2009 are recent experiences which may be cited as best practices. Could similar policies be applicable to Latin American cities where the use of the bicycle has been progressively abandoned but seems to have now a regaining image? What could be its potential impact on diminishing greenhouse gas emissions? What could be its potential impact on tourism? After a rapid review of various experiences in Europe, Canada and Latin America, we will focus on the example of Puebla, a city of 1.5 million inhabitants in the Centre-East of Mexico, for which we collected data in an opinion survey (2007-8) on non motorized modes. This case study leads to conclusions on the feasibility of such policies in a South American context and its potential impact in terms of sustainability as well as in economic benefits via the tourist industry. An approximation of the emissions in urban transportation that can be saved by the practice of the bicycle for utilitarian an leisure purposes and multimodality Bike-Public Transport, facilitated by the rent-a-bike systems, gives us a tangible reduction of the emissions of around 3% of urban transport of persons and 0.5% of total emissions in conservative scenarios. Furthermore these environment friendly policies, in cities like Puebla, a UNESCO World Monument city with strong tourist activity, could induce enormous economic benefits (in the range of 500 million US$ a year) by prolonging the average stay of tourists of a few days. © 2010 WIT Press.
Vanelslander T.,University of Antwerp |
Chomat G.,CERTU |
Roumboutsos A.,University of Aegean |
Built Environment Project and Asset Management | Year: 2014
Purpose: The purpose of this paper is to present a methodology of comparing concession projects developed in different transport sub-sectors. The methodology is tested in the comparison of three different cases, each of which represent a particular mode of transport: a road development project, a city tramway project and a port lock construction initiative. Design/methodology/approach: A fuzzy logic approach methodology is applied in carrying out the comparison between cases. Granulation is achieved by employing a Contextual (Ws) Risk Analysis Framework, as risks constitute the basis to public private partnership (PPP) structure. Linguistic variables are then used to describe the comparative findings. Findings: The methodology presented allows for the comparison of three cases from different transport sub-sectors. Identification of similarities provides the potential to transfer experience from one sector to the other. With respect to the three cases studied, it was identified that traffic risk seems to be passed on to the private operators in relation to the level of exclusivity. Finally, PPP projects initiated by central government (as opposed to those initiated by local governments) seem to be more finance-driven than service-driven. Research limitations/implications: As the number of cases to be compared increases, quantitative comparative analysis fuzzy set values can be included in order to carry out a full analysis. The present approach should be considered introductory, as fuzzy sets are not generated due to the limited number of surveys (cases) compared (hence the term "pre-fuzzy"). Practical implications: The methodology presented and the cases tested indicate the possibility for knowledge/experience transfer and the transferability of best practices. Originality/value: Cross-sub-sectoral comparisons for transport PPP projects have not been identified in literature. © Emerald Group Publishing Limited.
Bouzouina L.,LET |
Nicolas J.-P.,LET |
Recherche Transports Securite | Year: 2011
Alternatives to the use of automobiles have regained attention at the urban level. Against this background, we look at the spatial context of this attention in the agglomeration of Lyon. More specifically, we look at how CO 2 emissions that are associated with everyday mobility have developed until recently. First, we estimate the intensity of CO 2 emissions per day based on the last two household travel surveys done in the Lyon conurbation in 1995 and 2006. Even if the global emission level remains stable, we aim to analyze the dynamics of the socio-economic evolution of mobility between the two periods. To that end, we have abstracted the linkage of a specific form of mobility (mode of transport and distance) to a specific population group (status, residential location, car access, gender). This typology helps us highlight the groups where emission rates are significantly higher, and where the focus on emission reduction should be intensified. © 2011 INRETS et Springer-Verlag France.
Urban stormwater management fee revealing public action. Analysis of the first French experiences [La taxe pour la gestion des eaux pluviales urbaines, un révélateur de laction publique: Analyse des premières expériences en France]
Le Nouveau N.,Certu |
Deroubaix J.-F.,ParisTech National School of Bridges and Roads |
Diou G.,ENTPE |
Tardivo B.,Ministere de lEcologie
Techniques - Sciences - Methodes | Year: 2013
In France, since 2011, local authorities have had the possibility to establish a fee for the stormwater management. The introduction of this fee is likely to enable them on one hand to encourage to sealing and stormwater source control and on the other hand to obtain resources to address the challenges of public stormwater management financing. Its input is a priori a milestone in the construction of a public stormwater management service. It is also a special moment to question it from the management of public finances in terms of policy choices, financial constraints and capacity for action. So, a study was initiated to observe and analyze the conditions of entry of this new instrument. Some municipalities have already deliberated to implement it; a number are considering whether to do so. After recalling the construction of this fee in France, a first overview of the conditions of its introduction by municipalities is raised. It helps to understand what taxation reveals about public action in the field of stormwater management today.
Palmier P.,PCI ESAD CETE Nord Picardie |
Durlin T.,PCI ESAD CETE Nord Picardie |
19th Intelligent Transport Systems World Congress, ITS 2012 | Year: 2012
The innovation and competence team named "Evaluation of travel management assistance systems "has for mission to elaborate new methodologies of evaluation, as those developed for the user information and traffic management projects . This study, complementary to the evaluation of the Allegro system, which manages the freeways of Lille city, helped to innovate and to highlight the decrease in warning time by using automatic incident detection (AID) systems.