187 research outputs found

    The French Multimodal Fund Case Study, Annex 4 to REVENUE Project Deliverable 4, “Report on the Implementation of Interurban Case Studies”

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    In December 2003, the French government decided to implement an ambitious transport policy with a set of significant transport infrastructure projects. So as to finance a part of this policy a new public funding agency, called AFITF ("Agence pour le Financement des Infrastructures de Transport de France") was implemented the 1st January 2005.AFITF took over from the FITTVN ("Fonds d'Investissement pour les Transports Terrestres et les Voies Navigables") which was created in 1995 to re-launch public investment in transport infrastructures and abolished the 1st January 2001. The succession of investment funds underlines the persistent need for an everlasting transport investment financing.The main objective of successive French governments is an everlasting (or “sustainable”) transport investment financing with the concern of opening up less developed areas. To reach this aim, we focus our case study on important questions like revenues, pricing rule, equity and efficiency issues:‱ Which revenues to obtain a “sustainable” transport investments financing?‱ Which pricing rule for financing in an efficient way?‱ Which allocation between modes for optimal efficiency and for equity?‱ How will AFITF be “accepted” by different transport actors (motorways companies, road users, rail users...) and poor and rich regions inhabitants?Financing “sustainability”, efficiency and equity issues are addressed by the means of the Molino model and acceptability aspects through an analysis of the creation and ending of the FITTVN.The first part of the case study is devoted to the investment funds feasibility question through the FITTVN example.The second part of the case study is devoted to the assessment of regulation schemes.transport infrastructures ; investment ; regulation schemes ; sustainable mobility ; France ; REVENUE

    De la pertinence des mesures gravitaires de l'accessibilité : démonstration par la théorie et l'exemple

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    Le prĂ©sent article s'attache Ă  dĂ©montrer l'intĂ©rĂȘt des indicateurs d'accessibilitĂ© gravitaire et ce, malgrĂ© les diffĂ©rentes critiques qui leur sont portĂ©es par les prĂ©curseurs de la time-geography et de l'Activity Based Accessibility. Ainsi dans un premier temps, l'article prouve que le calcul d'indicateurs d'accessibilitĂ© spatiale Ă  partir d'un modĂšle de distribution spatiale de type gravitaire, est cohĂ©rent avec le calcul Ă©conomique classique de surplus. Il souligne ensuite au travers d'une sĂ©rie de mesures d'accessibilitĂ© menĂ©es sur Strasbourg qu'il est possible d'une part de prendre en compte l'hĂ©tĂ©rogĂ©nĂ©itĂ© de la population en menant une analyse dĂ©sagrĂ©gĂ©e et d'autre part de travailler sur une approche zonale fine grĂące Ă  l'utilisation d'un SIG suffisamment prĂ©cis.accessibilitĂ© gravitaire, surplus de l'usager, Ă©valuation Ă©conomique, politiques de transport, politiques urbaines, SIG, Strasbourg

    Simulating housing prices in Lyon with UrbanSim: predictive capacity and sensitivity analysis

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    Housing prices in the Lyon Urban Area are simulated with the land use framework UrbanSim interacting with transportation model. We focus on the Real Estate Price Model of the UrbanSim framework. This OLS regression model of housing prices is calibrated using a nine-year back-casting period. The calibrated model, applied in simulation, provides price dynamics similar to actual one in the centre of Lyon. Sensitivity analysis demonstrates the model’s ability to capture changes in employment accessibility on price dynamics. We conclude that the calibrated residential Real Estate Price Model from the UrbanSim application in Lyon is sensitive to changes in accessibility and provides good predictive capacity in the city centre, but underestimates prices in other areas

    Prospective stratégique sur les ressources de financement des transports collectifs urbains de Bordeaux Métropole

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    PrĂ©ambule. Ce rapport a Ă©tĂ© rĂ©digĂ© Ă  la demande de l’a’urba, agence d’urbanisme de Bordeaux MĂ©tropole Aquitaine, dans le cadre de la mise en Ɠuvre des orientations du Grenelle des MobilitĂ©s. Il se propose, Ă  partir d’un diagnostic sur l’évolution du rĂ©seau de transports collectifs urbains, et de scĂ©narios sur son devenir Ă  l’horizon 2030, de discuter des marges de manƓuvre quant Ă  son financement et de proposer une sĂ©rie de recommandations pour les annĂ©es Ă  venir.Le premier point est donc centrĂ© sur une analyse rĂ©trospective (1995-2015) des importantes Ă©volutions qu’a connu ce rĂ©seau, avec notamment l’arrivĂ©e du tramway en 2003, mais en les mettant en perspective avec ce qui s’est fait dans les 12 agglomĂ©rations de plus de 400 000 habitants, disposant d’un Transport en Commun en Site Propre (TCSP) en France. L’accent sera mis notamment sur les conditions de financement de ce rĂ©seau.Le second point vise Ă  prĂ©ciser quel sera le besoin de financement pour les annĂ©es Ă  venir, qui dĂ©pend largement des stratĂ©gies de dĂ©veloppement de l’offre. Un outil de simulation, calĂ© sur la situation bordelaise, sera utilisĂ© pour estimer l’ampleur des besoins financiers et proposer quelques premiĂšres pistes visant Ă  pĂ©renniser son financement.Le troisiĂšme point a pour but d’identifier les possibilitĂ©s accroĂźtre la performance du rĂ©seau, notamment en termes d’attractivitĂ© vis-Ă -vis de l’usage de la voiture particuliĂšre. Une analyse comparative de l’accessibilitĂ© selon ces deux modes est prĂ©sentĂ©e, sur la base des temps de parcours zone Ă  zone, issus du modĂšle multimodal gĂ©rĂ© par Bordeaux MĂ©tropole.Le quatriĂšme point aborde plus globalement la cohĂ©rence des actions entreprises en matiĂšre de concurrence/complĂ©mentaritĂ© entre la voiture et le transport collectif, en insistant notamment sur la cohĂ©rence du systĂšme du « prix de la mobilitĂ© », et discutera de diverses mesures envisageables pour amĂ©liorer le financement de l’offre de transport collectif

    Simulating housing prices in Lyon with UrbanSim: Predictive capacity and sensitivity analysis

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    Housing prices in the Lyon Urban Area are simulated with the land use framework UrbanSim interacting with transportation model. We focus on the Real Estate Price Model of the UrbanSim framework. This OLS regression model of housing prices is calibrated using a nine-year back-casting period. The calibrated model, applied in simulation, provides price dynamics similar to actual one in the centre of Lyon. Sensitivity analysis demonstrates the model’s ability to capture changes in employment accessibility on price dynamics. We conclude that the calibrated residential Real Estate Price Model from the UrbanSim application in Lyon is sensitive to changes in accessibility and provides good predictive capacity in the city centre, but underestimates prices in other areas

    Passive coherent combining of CEP-stable few-cycles pulses from a temporally divided hollow fiber compressor

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    International audienceWe demonstrate a simple and robust passive coherent combining technique for temporal compression of millijouleenergy laser pulses down to few-cycle duration in a gas-filled hollow fiber. High combining efficiency is achieved byusing carefully oriented calcite plates for temporal pulse division and recombination. Carrier-envelope phase (CEP)-stable, 6-fs, 800-nm pulses with more than 0.6 mJ energy are routinely generated. This method could aid in theenergy scaling of CEP-stable hollow-fiber compressor systems

    Sex-Specific Crossover Distributions and Variations in Interference Level along Arabidopsis thaliana Chromosome 4

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    In many species, sex-related differences in crossover (CO) rates have been described at chromosomal and regional levels. In this study, we determined the CO distribution along the entire Arabidopsis thaliana Chromosome 4 (18 Mb) in male and female meiosis, using high density genetic maps built on large backcross populations (44 markers, >1,300 plants). We observed dramatic differences between male and female map lengths that were calculated as 88 cM and 52 cM, respectively. This difference is remarkably parallel to that between the total synaptonemal complex lengths measured in male and female meiocytes by immunolabeling of ZYP1 (a component of the synaptonemal complex). Moreover, CO landscapes were clearly different: in particular, at both ends of the map, male CO rates were higher (up to 4-fold the mean value), whereas female CO rates were equal or even below the chromosomal average. This unique material gave us the opportunity to perform a detailed analysis of CO interference on Chromosome 4 in male and female meiosis. The number of COs per chromosome and the distances between them clearly departs from randomness. Strikingly, the interference level (measured by coincidence) varied significantly along the chromosome in male meiosis and was correlated to the physical distance between COs. The significance of this finding on the relevance of current CO interference models is discussed

    Le site stratifié du Bois Clair à Montguyon (Charente-Maritime, France) : récurrences paléolithiques, briÚveté des occupations et aires de débitage spécialisées

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    Le site du Bois Clair constitue un nouveau jalon pour la comprĂ©hension des occupations palĂ©olithiques proches de la façade atlantique. FouillĂ© dans le cadre du projet de construction de la ligne Ă  grande vitesse Sud Europe Atlantique, il a livrĂ© plusieurs niveaux d’occupations qui s’intercalent dans des dĂ©pĂŽts colluviaux et Ă©oliens au sein desquels subsistent deux horizons de sol lessivĂ© de rang interglaciaire, l’un actuel et l’autre fossile. L’ensemble de la sĂ©quence est cadrĂ© par six datations par luminescence. Si le contexte topographique et sĂ©dimentaire a favorisĂ© le panachage d’industries sĂ©parĂ©es dans le temps, en particulier sur le point haut du site, le degrĂ© de conservation du site reste malgrĂ© tout Ă©tonnamment bon, particuliĂšrement dans la partie supĂ©rieure de la sĂ©quence oĂč l’organisation spatiale est localement bien prĂ©servĂ©e, autorisant ainsi d’intĂ©ressantes interprĂ©tations comportementales des diffĂ©rents groupes culturels ayant frĂ©quentĂ© le site. Il se singularise par une rĂ©currence de petites occupations palĂ©olithiques s’étalant de façon non linĂ©aire du MoustĂ©rien jusqu’au Tardiglaciaire. Elles sont toutes matĂ©rialisĂ©es par des aires de dĂ©bitage trĂšs circonscrites dans l’espace et tournĂ©es vers des productions spĂ©cialisĂ©es. Cette Ă©tude prĂ©sente les principales donnĂ©es acquises et se focalise sur les deux niveaux les mieux conservĂ©s du site : le niveau moustĂ©rien supĂ©rieur et le niveau magdalĂ©nien. Le premier est rattachĂ© Ă  un technocomplexe moustĂ©rien rĂ©cent (OIS3) Ă  dĂ©bitage discoĂŻde spĂ©cifiquement tournĂ© vers une production de pointes pseudo-Levallois via des modalitĂ©s de dĂ©bitage originales, particuliĂšrement bien documentĂ©es par les remontages. Le second niveau prĂ©sentĂ© correspond Ă  une brĂšve occupation de la phase finale du MagdalĂ©nien orientĂ©e vers une production de grandes lames rĂ©alisĂ©e Ă  partir de cinq blocs de silex d’origine locale.The Bois Clair site is a new benchmark for the study of the Atlantic coast area Palaeolithic settlements. Excavated during the high speed Sud Europe Atlantique train line construction project, it revealed several occupation levels, inserted in colluvial and eolian deposits displaying two argillic horizons. The sequence is chronologically established by six luminescence datings. Despite a topographic and sedimentary context leading to the mixing of chronologically distinct industries, especially at the highest point of the site, it’s state of preservation remains surprisingly good, particularly in the upper part of the sequence where the spatial organization is locally preserved, thus allowing interesting behavioral interpretations. The site stands out through recurrent and small palaeolithic settlements, dating from the Mousterian to the Late Upper Palaeolithic. These settlements all display small debitage areas, dedicated to specialized productions. This paper presents the acquired data and focuses on the two best preserved occupation levels : the Late Mousterian and Magdalenian levels. The first belongs to the late mousterian technological complex (OIS3), displaying a discoĂŻde debitage specifically dedicated to pseudo-levallois points production, achieved through original debitage methods well documented by many refittings. The second level represents a brief Late Upper Magdalenian settlement, displaying the shaping and debitage of five local flint cores, dedicated to long blade production

    Regard sur la pratique ergothĂ©rapique en dĂ©ficience intellectuelle au QuĂ©bec : une enquĂȘte exploratoire

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    Introduction : Au QuĂ©bec, le dĂ©veloppement de la pratique de l’ergothĂ©rapie en dĂ©ficience intellectuelle est en pleine Ă©mergence au regard du nombre d’ergothĂ©rapeutes engagĂ©s dans l’offre de services destinĂ©e Ă  cette clientĂšle. NĂ©anmoins, les Ă©crits et les outils liĂ©s Ă  l’ergothĂ©rapie au QuĂ©bec dans ce domaine restent limitĂ©s pour soutenir les ergothĂ©rapeutes dans l’accomplissement de leur plein potentiel professionnel. Objectif : Cette Ă©tude vise Ă  brosser le portrait de la pratique de l’ergothĂ©rapie auprĂšs des personnes ayant une dĂ©ficience intellectuelle au QuĂ©bec. MĂ©thode : L’enquĂȘte utilisant un questionnaire en ligne, diffusĂ© aux ergothĂ©rapeutes par le biais de leur association professionnelle, comprenait des questions liĂ©es aux motifs de rĂ©fĂ©rence en ergothĂ©rapie, aux stratĂ©gies d’évaluation et aux mĂ©thodes d’intervention utilisĂ©es, ainsi qu’aux dĂ©fis rencontrĂ©s dans la pratique. RĂ©sultats : Un total de 53 ergothĂ©rapeutes a rempli le questionnaire. Les participants travaillent dans divers contextes de pratique et rĂ©pondent Ă  une variĂ©tĂ© de demandes de consultation, principalement en lien avec le soutien Ă  l’autonomie. Les ergothĂ©rapeutes utilisent plusieurs outils d’évaluation, mais notent un dĂ©fi concernant la standardisation et l’utilisation des valeurs normatives. Les ergothĂ©rapeutes agissent majoritairement Ă  titre de consultants et constatent un accĂšs limitĂ© Ă  des formations pour soutenir leur dĂ©veloppement professionnel. Conclusion : Bien que les rĂŽles de l’ergothĂ©rapeute soient multiples, il semble qu’une faible implication de ces professionnels soit observĂ©e dans plusieurs sphĂšres de vie des personnes ayant une dĂ©ficience intellectuelle. Divers champs d’exercices de l’ergothĂ©rapie resteraient Ă  dĂ©velopper au QuĂ©bec, notamment dans le soutien aux transitions de vie, auprĂšs des personnes prĂ©sentant des incapacitĂ©s significatives, et dans l’inclusion socioprofessionnelle. ----- Introduction: In Quebec, the occupational therapy practice in intellectual disability is in full development with regard to the number of occupational therapists involved in services intended for people with an intellectual disability. Nevertheless, scientific literature and professional tools related to occupational therapy specific to this context remains limited to support occupational therapist in achieving their full potential. Aim: This study aims to explore the occupational therapy practice amongst people with an intellectual disability in Quebec. Method: This survey using an online questionnaire, distributed to occupational therapists through their professional association, included closed and open-ended questions related to reasons for referral in occupational therapy services, currently used assessment strategies and intervention methods, as well as challenges encountered by occupational therapists. Results: A total of 53 occupational therapists completed the survey. Participants work in many practice settings and respond to a variety of consultation requests, primarily related to support of autonomy in daily activities. Occupational therapists use several assessment tools, but identify a challenge regarding the standardization and the use of normative values. Occupational therapists mostly act as consultants and report limited access to training supporting their professional development. Conclusion: Although the roles of occupational therapist are multiple, a limited involvement of these professionals is noted in several life domains of people with an intellectual disability. Various fields of expertise still need to be developed in Quebec, notably in the support during life transitions, in interventions with people with significant disabilities, and in socioprofessional inclusion
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