No.1

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PASCO CORPORATION

Traffic Accident Analysis System　Using GIS

Traffic Accident Analysis SystemTraffic Accident Analysis System　　Using GISUsing GIS

Kazuo Kazuo HanakawaHanakawa

PASCO CORPORATION JAPANPASCO CORPORATION JAPAN

No.2

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PASCO CORPORATION

ABSTRACT

We developed two systems which manage the data related totraffic accident. One system conducts analyses using the information on accident,road, and weather, for example, calculation of the rate of theaccident depending on road condition or weather condition.Another analyzes using the information on safe facilities.For example, extraction of the sites which have accidentsrepeatedly.Using these functions, accident information is easily collectabledand road administrator's task to create document's on safetymeasures is supported.

No.3

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PASCO CORPORATION

1.1 Traffic environmentNumber of carsNumber of cars

89.72mil(approx)89.72mil(approx)

Number of driving license holdersNumber of driving license holders75.55mil(approx)75.55mil(approx)

Number of driving license holders (Senior)Number of driving license holders (Senior)7.65mil(approx)

1 car / 1.2 persons eligible to get driver’s license

1 person / 1.4 persons eligible to get driver’s license

7.65mil(approx)10% of drivers

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PASCO CORPORATION

1.2 Trend of Traffic Accident

Death toll

Number of the injury

Number of traffic accidents

0.950.95mil(approx)mil(approx)

1.181.18mil(approx)mil(approx)

87478747

16,716,76565

No.5

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PASCO CORPORATION

2.1 Case study and Purpose (1)OrganisationOrganisation

Civil Engineering Research Institute of Hokkaido (CERI)Civil Engineering Research Institute of Hokkaido (CERI)

PurposePurposeAnalyseAnalyse winterwinter--specific accidentsspecific accidentsTake preventive action against winterTake preventive action against winter--specific accidentsspecific accidents

Tokyo

HOKKAIDOHOKKAIDO

No.6

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PASCO CORPORATION

2.2 Case study and Purpose (2)OrganisationOrganisation

Chiba Prefectural Police ForceChiba Prefectural Police Force

PurposePurposeMake advanced use of Traffic Information Management SystemMake advanced use of Traffic Information Management SystemEstablish traffic safety measures for children and elderly peoplEstablish traffic safety measures for children and elderly peoplee

TokyoCHIBACHIBA

No.7

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PASCO CORPORATION

3.1 Data Use (Case1)

22 sites in the regionMeteorological　　　　observatory *3

162 sites in the region1989～2001

Weather Information

POINTAMEDAS *3Event dataLINEEvent data1999Road

InformationPOINTMICHI *2

Event data(Physical injury/Death)

1989～2001

Accident Information

POINTMatching data *1NOTEYEARUSETYPEITEM

Civil Engineering Research Institute of HokkaidoCivil Engineering Research Institute of Hokkaido

※Japan Digital Road Map Association’s road map, and off-the-shelf map for the background.

*1　NPA’s statistics on traffic accident is integrated with MLIT’s traffic census data.*2　MLIT’s information on road facilities. *3　JWA’s weather information.

No.8

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PASCO CORPORATION

3.2 Data Use (Case2)

School RouteLINE869 Schools in the region

2002LocationPOINTPrimary school *3

2000Aged Population

POLYGONCensus *2

1996～AccidentInformation

POINTAccident site *1NOTEYEARUSETYPEITEM

Chiba Prefectural Police ForceChiba Prefectural Police Force

※ Japan Digital Road Map Association’s road map, and off-the-shelf map for the background.

*1　Data is registered using Traffic information management system.*2　Statistics Bureau’s population data.*3　School routing maps managed by education committee are digitized.

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PASCO CORPORATION

Accident InformationSet Condition

AnalysisCalculate the number of accidents

Accident rate, Fatality rate

・Accident information : date, type, etc.

・Road information : vertical slope, etc.

・Weather information : Air temperature, Rainfall,etc.

・Accident information : date, type, etc.

・Road information : vertical slope, etc.

・Weather information : Air temperature, Rainfall,etc.

Analysis TypeCensus section or Arbitrary section

Set Route and Area

　　　　　 Number of Accidents * 100,000,000

　　　　　　 Length * Period * Traffic volume

　　　　　 Number of Fatalities * 100,000,000

　　　　　　 Length * Period * Traffic volume

　　　　　 Number of Accidents * 100,000,000

　　　　　　 Length * Period * Traffic volume

　　　　　 Number of Fatalities * 100,000,000

　　　　　　 Length * Period * Traffic volume

Accident Rate =

Fatality Rate =　

Census section :

Traffic volume data is used.

Any section :

Traffic volume is calculated proportionately.

Census section :

Traffic volume data is used.

Any section :

Traffic volume is calculated proportionately.

4.1 Method of Analysis (Case1)

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PASCO CORPORATION

Accident Rate Fatality Rate

HIGHLOW

CharacteristicsCharacteristicsUse traffic volume data.Provide understandable presentation.

4.2 Visualization (Case1)

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PASCO CORPORATION

EffectivenessEffectivenessTime for analysis and inquiry was

reduced by 70 – 80 %.Benefit analysis report is easily

produced.Safety measures are established to

prevent traffic accidents.

4.3 Evaluation of Method (Case1)

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PASCO CORPORATION

・Accidents involving children and aged people.

・Accidents when crossing road.

・Accidents involving children and aged people.

・Accidents when crossing road.

Creating a buffer :

Around each extracted accident.

Option :

Boundaries of neighboring polygons removed.

Creating a buffer :

Around each extracted accident.

Option :

Boundaries of neighboring polygons removed.

Display the sites only where the number of accident exceeds the number of accident at freely specified places,as accident prone sites.

Display the sites only where the number of accident exceeds the number of accident at freely specified places,as accident prone sites.

Accident InformationSet Condition

StatisticsSum up the number of accidents

Statistics TypeSet Zone

5.1 Method of Analysis (Case2)

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PASCO CORPORATION

Using Census Data Using School Route

Prone SitexSchool Route

Prone SitexLOW HIGH

CharacteristicsCharacteristicsShare data for common use. Provide understandable presentation.

5.2 Repetitive Accidents (Case2)

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PASCO CORPORATION

EffectivenessEffectivenessThe system is useful for establishing

traffic safety measures, as the trend of accidents is detected.Awareness of traffic safety is increased

by using GIS.The result of questionnaire

70% of schools use the data for revising school route.More than 90% of schools request data (in digital format)

5.3 Evaluation of Method (Case2)

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PASCO CORPORATION

6 Issues for Improvement

Adaptation to the change of national road construction

plan and traffic volume.

Use of DBMS and alternative operation method to deal

with large volume data.

Adaptation to the change of national road construction

plan and traffic volume.

Use of DBMS and alternative operation method to deal

with large volume data.

Case1 for HokkaidoCase1 for HokkaidoCase1 for Hokkaido

Accumulation of information on safety facilities and

regulations.

Disclosure methods for schools, and effective use of information.

Accumulation of information on safety facilities and

regulations.

Disclosure methods for schools, and effective use of information.

Case2 for ChibaCase2 for ChibaCase2 for Chiba

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PASCO CORPORATION

7 Conclusion

Diffusion of knowledge on traffic accident.

Awareness of Traffic Safety.

Diffusion of knowledge on traffic accident.

Disclosure method of the analyses result.

Data distribution method.

Disclosure method of the analyses result.

Diffusion of knowledge on traffic accident.

Awareness of Traffic Safety.Awareness of Traffic Safety.

Disclosure method of the analyses result.

Data distribution method.Data distribution method.

Prevent traffic accident.Prevent traffic accident.Prevent traffic accident.

Challenge to Achieve Secure SocietyChallenge to Achieve Secure SocietyChallenge to Achieve Secure Society

No.17

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PASCO CORPORATION

8 ReferencesNational Police AgencyNational Police Agency

White Paper on Police 2002White Paper on Police 2002http://www.http://www.pdcpdc..npanpa.go..go.jpjp//hakusyohakusyo/h14/h14index.html/h14/h14index.html

Ministry of Land, Infrastructure and Transport Ministry of Land, Infrastructure and Transport Government of JapanGovernment of Japan

About road safety measuresAbout road safety measureshttp://www.http://www.mlitmlit.go..go.jpjp/road/road/traffic//road/road/traffic/sesakusesaku/index.html/index.html

Civil Engineering Research Institute of HokkaidoCivil Engineering Research Institute of HokkaidoMonthly report May 2001Monthly report May 2001http://www3.http://www3.cericeri.go..go.jpjp/monthly0205/02_05./monthly0205/02_05.htmhtm

Chiba PrefecturalChiba PrefecturalThe 7th Traffic safety schemeThe 7th Traffic safety schemehttp://www.pref.http://www.pref.chibachiba..jpjp//syozokusyozoku//e_kouane_kouan/anzen07/anzen07--j.htmlj.html

No.18

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PASCO CORPORATION

Kazuo Hanakawa

E-mail: kazuo_hanakawa@pasco.co.jp

Social Environment Engineering Department

PASCO CORPORATION JAPAN

Telephone: +81-3-6412-2501

Fax: +81-3-6412-2573