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Mapping: a Tool for Analyzing Delinquency in Mass Transport Networks

Fabrice Fussy, in charge of the Analysis and Research Unit of the National Monitoring Center of Delinquency in Transports (ONDT) Fabrice.Fussy@developpement-durable.gouv.fr. 1st French-US Workshop on the Role of Public Transport in Creating Livable and Sustainable Communities

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Mapping: a Tool for Analyzing Delinquency in Mass Transport Networks

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  1. Fabrice Fussy, in charge of the Analysis and Research Unit of the National Monitoring Center of Delinquency in Transports (ONDT) • Fabrice.Fussy@developpement-durable.gouv.fr • 1st French-US Workshop on the Role of Public Transport in Creating Livable and Sustainable Communities • January 28, 2011 Mapping: a Tool for Analyzing Delinquency in Mass Transport Networks Direction générale des infrastructures, des transports et de la mer

  2. Titre de la réunion Sommaire ONDT Specificities ISIS Database Observation, analysis, action : Mapping System

  3. Titre de la réunion ONDT : the Genesis • 2001 : creation of a mission in charge of security and deliquency prevention • 2006 : creation of the National Monitoring Center of Security in Rail and Mass Transports (ONSTFC) • 2008 : creation of the National Monitoring Center of Delinquency in Transports (ONDT) • Strengthen and develop the fight against delinquency policy • Carry out the follow-up of the level of delinquency and assess the actions

  4. Titre de la réunion ONDT Specificities ISIS Database Observation, analysis, action : Mapping System

  5. Titre de la réunion Specificitiess • Specificities of the geographical approach of deliquency in transports : Static geography (stations,…) Spatial Dimension Dynamic geography (trains, streetcars…) Open spaces (stations, bus stops…) Social Dimension Closed spaces (underground…) Daily breathing (home-workplace) Time Dimension Seasons (school holidays…) • development of a tool adapated to these specificities

  6. Titre de la réunion ONDT Specificities ISIS Database Observation, analysis, action : Mapping System

  7. Titre de la réunion ISIS Database • Currently : • Gathers all the facts reported to the two main transport operators since 1999, that is, over a million acts • In a close future : • - integration of the acts reported to other transport operators • - integration of acts reported to the police

  8. Titre de la réunion ONDT Specificities ISIS Database Observation, analysis, action : Mapping System

  9. Titre de la réunion Mapping System • Know delinquency : • Illustrative mapping • Understand delinquency : • Strategic mapping • Anticipate delinquency : • Animated mapping

  10. Titre de la réunion Illustrative mapping : Where ? When ? • Better know delinquence : • Accurately represent results indicators • Analyze the geographic distribution of delinquency acts • Find the concentration areas, the hot spots

  11. Titre de la réunion Strategic mapping : why ? • Better understand delinquency : • Cross different types of indicators : result indicators and context indicators • Detect the interactions between delinquency and its environment • Use of a Geographic Information System

  12. Titre de la réunion Strategic mapping : why ? • Allocate a specialisation to a territory : • Location ratio method The Location ratio of a type of act for a given site compares the contribution of this site for this type of act to the contribution of this site for all the acts recorded : overrepresentation Formula : Ci : number of acts of type i Ct : total number of acts n : analyzed spatial unit N : total territory analyzed • Ex : specialisation of French cities and departement in Ile-de-France

  13. Titre de la réunion Animated mapping: what moment ? • Better anticipated delinquenc : • Represent jointly time and space • Observe breathing and seasonal effects • Detect delinquency transfers • Ex : Monthlty profil of metal robberies and • the evolution of Copper price

  14. Titre de la réunion Recommendations • Promote the use of delinquency mapping at a strategic level • Disseminate a methodology guide for the mapping of delinquency in mass transports

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