socio-environmental disorder and urban configuration project seduc data geocoding enhanced geocoding...

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Socio-Environmental Disorder and Urban Configuration Project SEDUC Data Geocoding Enhanced Geocoding Toolkit

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Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Data Geocoding

Enhanced Geocoding Toolkit

IncidentLocation

~50%

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Geocoding Geocoding IssuesIssuesGeocoding Geocoding IssuesIssues

Enhanced Geocoding ToolkitEnhanced Geocoding Toolkit

Standard geocoding~50%

Enhanced geocoding~90%

Details of pan-London study in:Brimicombe A..J.; Brimicombe, L..C. & Li, Y. (2007) Improving geocoding rates in preparation for crime data analysis. International Journal of Police Science and Management 9: 80-92

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Functions: removal of non-address data, postcode cleaning etc.

Batch process to address level

L1 Standard Address Point Geocoding (Matchcode used for this procedure)

Pre-Process Cleansing

Is the record geocoded?

Yes

No

Geocoded tolevel L1

Enhanced Geocoding Toolkit: a multi-level approach – from L1 to L4

L1 Level

Address point data

PAF data

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

geocode using other location information e.g junction data, station name etc.

L2 & L3 Advanced Geocoding

Is the record geocoded?

Yes

No

Geocoded tolevel L2

Is the record geocoded?

Yes

No

Geocoded tolevel L3

Is the record geocoded?

Yes

No

Geocoded tolevel L1

L2 Level

L3 Level geocode using postcode information

street junction data derived from OS ITN

gazetteer data

CodePoint data

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Move geocoded database

Add Validation code

End of process

Geocoding using CAD-ref and street name

L4 Geocoding at street level

L4 Level

Is the record geocoded?

YesNo Geocoded tolevel L4

street point data derived from OS ITN

CAD-ref data

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Level No. geocoded %

L1 50,363 55.4

L2 4,164 4.6

L3 13,061 14.4

L4 15,258 16.8

Total 82,846 91.1

Brimicombe A.J. Brimicombe, L. Li, Y. 2007 Improving geocoding rates in preparation for crime data analysis. International Journal of Police Science and Management. 9: 80-92 ISSN 1461-3557

Enhanced Geocoding Toolkit

90,904 records of all crime

Batch Batch cleaning cleaning with this with this toolkit toolkit

will will increase increase geocodingeocodin

g rateg rateand be and be

consistenconsistent for the t for the bulk of bulk of

the datathe data

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Newham

Time period: Two years

January 2006 to December 2007

Total records in data set:

70,812

Anti-social behaviour records:

48,698

Variables: ASB incident type; date, time

Geo-coded records:

98% (47,617 records)

ASB incident types: 160 in total with sub-codes- drunken behaviour

- Threatening/violent behaviour

- Vandalism

- drug related

- Fly tipping

- Graffiti

- Hooliganism/Loutish behaviour

- Intimidation

- Noising neighbours

- Harassment

- Problematic congregation

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Tower Hamlets

Time period: Two years

January 2006 to December 2007

Total records in data set:

4, 327

Anti-social behaviour records:

4,327

Variables: ASB category type; date, time

Geo-coded records:

94% (4065 records)

ASB incident types: 17

- Anti-Social Behaviour Alcohol Related

- Damage to property

- Disability Related Incidents

- Drugs Harassment

- Dumping of Rubbish

- Faith Related Incidents

- Homophobic Incidents

- Noise Harassment

- Public Disorder (Sexual Acts)

- Race Related Incidents

- Threat of Violence/Nuisance

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Socio-Environmental Disorder and Urban Configuration

Project SEDUC

Barking and Dagenham

Time period: Two years

April 2006 to March 2008

Total records in data set:

670

Anti-social behaviour records:

668

Variables: ASB category type; date, time

Geo-coded records:

99.6% (665)

ASB incident types: 19

- Drug / substance misuse & dealing

- Street drinking

- Environmental

- Vehicle related nuisance & Inappropriate vehicle

- Noise

- Rowdy & Nuisance Behaviour

- General Harassment

- Racial Harrassment

- Criminal damage / vandalism

- Rubbish

- Grafitti - Non Offensive

Socio-Environmental Disorder and Urban Configuration

Project SEDUC