mapping: a tool for analyzing delinquency in mass transport networks
DESCRIPTION
Fabrice Fussy, in charge of the Analysis and Research Unit of the National Monitoring Center of Delinquency in Transports (ONDT) [email protected]. 1st French-US Workshop on the Role of Public Transport in Creating Livable and Sustainable Communities - PowerPoint PPT PresentationTRANSCRIPT
Mapping: a Tool for Analyzing Mapping: a Tool for Analyzing Delinquency in Mass Transport Delinquency in Mass Transport NetworksNetworks
Direction générale des infrastructures, des transports et de la mer
Fabrice Fussy, in charge of the Analysis and Research Unit of the National Monitoring Center of Delinquency in Transports (ONDT)
1st French-US Workshop on the Role of Public Transport in Creating
Livable and Sustainable Communities
January 28, 2011
Pages
Titre de la réunionDate de la réunion
SpecificitiesSpecificities
Observation, analysis, action :
Mapping System
Observation, analysis, action :
Mapping System
SommaireONDTONDT
ISIS DatabaseISIS Database
Date de la réunionTitre de la réunion
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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
Date de la réunionTitre de la réunion
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SpecificitiesSpecificities
Observation, analysis, action :
Mapping System
Observation, analysis, action :
Mapping System
ONDTONDT
ISIS DatabaseISIS Database
Date de la réunionTitre de la réunion
5
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Specificities of the geographical approach of deliquency in transports :
Specificitiess
Spatial Dimension
Time Dimension
Static geography (stations,…)
Daily breathing (home-workplace)
Seasons (school holidays…)
Dynamic geography (trains, streetcars…)
Social DimensionOpen spaces (stations, bus stops…)
Closed spaces (underground…)
development of a tool adapated to these specificities
Date de la réunionTitre de la réunion
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ISIS DatabaseISIS Database
Observation, analysis, action :
Mapping System
Observation, analysis, action :
Mapping System
SpecificitiesSpecificities
ONDTONDT
Date de la réunionTitre de la réunion
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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
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ISIS DatabaseISIS Database
SpecificitiesSpecificities
Observation, analysis, action :
Mapping System
Observation, analysis, action :
Mapping System
ONDTONDT
Date de la réunionTitre de la réunion
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Mapping System Know delinquency :
Illustrative mapping
Understand delinquency :
Strategic mapping
Anticipate delinquency :
Animated mapping
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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
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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
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Allocate a specialisation to a territory : Location ratio method
Ex : specialisation of French cities and departement in Ile-de-France
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 iCt : total number of actsn : analyzed spatial unitN : total territory analyzed
N
nn
N
n n
n
n
Ct
Ci
CtCi
1
1
Strategic mapping : why ?
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Better anticipated delinquenc :
Represent jointly time and space
Observe breathing and seasonal effects
Detect delinquency transfers
Animated mapping: what moment ?
Ex : Monthlty profil of metal robberies and
the evolution of Copper price
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Recommendations
Promote the use of delinquency mapping at a strategic level
Disseminate a methodology guide for the mapping of delinquency in mass transports