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UsingDatatoCombatImpairedDriving
TexasA&MTransporta?onIns?tuteStatewideImpairedDrivingForum
2015
TEXASDEPARTMENTOFPUBLICSAFETYTexasHighwayPatrolDivision
HighwaySafetyOpera?onsCenter
ForOfficialUseOnly
• Mission: To enhance statewide highway and public safety bycollec?ng, analyzing, evalua?ng, and dissemina?ng informa?onrelatedtocriminalac?vity,crashes,andtrafficenforcement.
• TheHighway SafetyOpera?onsCenter (HSOC) is taskedwith thejudicious collec?on of data on highway-related criminal ac?vity,crashes, and traffic enforcement; centralizing the data for ?melysta?s?cal and trend analysis; and decentralizing the informa?onthrough dissemina?on to the Texas Department of Public Safety(DPS)andpartneragencies.
HSOCMissionandOverview
ForOfficialUseOnly
• CrashFatalityDashboard– Trendanalysissta?s?cssenttoDPSLeadershipandlegisla?vemembers
• HighwaySafetyAssessment(HSA)– Overviewofallstateandlocalinves?gatedfatalcrashes,HAZMATcrashes,
andcrimesagainstchildrenevents
• SpecialRequestProjects– DatarequestsfromStateTroopersandlocallawenforcement– ReportsfortheTexasStateLegislature
Analy?cal/DataProducts
ForOfficialUseOnly
• Data analysis on crashes, traffic enforcement, andcriminal ac?vity could greatly benefit in comba?ngimpaireddriving.– U?lizingdataandtrendanalysisincertainareastodetermineifDWIorother“impaired”incidentsareincreasingordecreasingoverspecific?meperiods.
• U?lizingdataandtrendanalysistodeterminepatrolloca?ons,?mes,anddaysoftheweekto have the greatest impact in the preven?on and reduc?on of impaired driving andimpaireddrivingcrashes.
– Comparing the rates of DWI serious injury crashes onspecialeventandholidayweekendstonon-holidays.
AnalysisofHighwayData
ForOfficialUseOnly
UsingDataHolidayComparisonofDWISeriousInjuryCrashes
Year
StatewideDWIInvolvedSeriousInjuryCrashes(Non-Holiday)
%ofTotalStatewideDWIInvolvedSerious
InjuryCrashes(Non-Holiday)
*AverageNumberofSeriousInjuryCrashesperDay(Non-Holiday)
StatewideDWIInvolvedSeriousInjuryCrashes
(Holiday)
%ofTotalStatewideDWIInvolvedSerious
InjuryCrashes(Holiday)
*AverageNumberofSeriousInjuryCrashesperDay
(Holiday)
RateDifference
2010 6,287 10.44% 18.82 861 12.05% 27.77 8.95
2011 5,949 10.20% 17.81 852 12.53% 27.48 9.67
2012 6,196 9.73% 18.55 841 11.95% 27.13 8.58
2013 5,723 8.73% 17.13 909 13.71% 29.32 12.19
2014 5,492 8.29% 16.44 921 14.36% 29.71 13.27
5YEARTOTAL 29,647 9.44% 17.75 4,384 12.88% 28.28 10.53
1
6
11
16
21
26
31
36
2010 2011 2012 2013 2014
CrashRateComparison:SeriousInjuryCrashes
perday
Non-Holiday
Holiday
Using DPS and TXDOT databases, we cananalyze large data sets in order to iden?fypossible palerns. This example highlights howtherateofseriousinjurycrashesinvolvingDWIismuchhigheronholidayweekends.
Iden?fying palerns like the above example can belerassist both state and local law enforcement to developstrategiestocombattrafficissues.
Note:DatacurrentasofJanuary23,2015,andaresubjecttochange.
ForOfficialUseOnly
Year
StatewideDWIInvolvedFatal
Crashes(Non-Holiday)
%ofTotalStatewideDWIInvolvedFatal
Crashes(Non-Holiday)
*AverageNumberofFatalCrashesperDay(Non-Holiday)
StatewideDWIInvolvedFatal
Crashes(Holiday)
%ofTotalStatewideDWIInvolvedFatal
Crashes(Holiday)
*AverageNumberofFatalCrashesperDay(Holiday)
RateDifference
2010 784 28.19% 2.35 104 11.71% 3.35 1.002011 747 26.65% 2.24 113 13.14% 3.64 1.402012 753 24.79% 2.25 114 13.15% 3.67 1.422013 784 25.70% 2.35 124 13.66% 4.00 1.652014 711 22.95% 2.13 133 15.76% 4.29 2.16
5YEARTOTAL 3,779 25.59% 2.26 588 13.46% 3.79 1.53
6
1
1.5
2
2.5
3
3.5
4
4.5
2010 2011 2012 2013 2014
CrashRateComparison:FatalCrashesperday
Non-Holiday
Holiday
Special Holidays andEvents encompass about8.49% of the days in ayear.However,13.46%offatalcrashesalributedtoDWI occur in that small?meframe.
The average number offatal crashes per day onholidayshasnotonlybeenapproximately1.53crasheshigher in the previous 5years, but has increasedyearbyyearsince2010.
Note:DatacurrentasofJanuary23,2015,andaresubjecttochange.
UsingDataHolidayComparisonofDWIFatalCrashes
ForOfficialUseOnly
UsingDataAreaSpecificDWICrashesandArrests
HP 2B01 - Jefferson County
Day of Week Alcohol Related Crashes - DPS DWI Related Crashes - DPS DWI Arrests - DPS
2010 2011 2012 2013 2014 2010 2011 2012 2013 2014 2010 2011 2012 2013 2014
Wee
kday
Monday 6 4 6 7 3 2 0 1 1 1 15 22 26 17 19
Tuesday 4 7 5 9 8 2 2 1 4 1 16 18 14 19 13
Wednesday 6 7 5 2 8 1 3 1 1 2 21 19 27 17 16
Thursday 10 7 8 10 1 5 0 2 3 0 33 23 32 21 21
Weekday Total 26 25 24 28 20 10 5 5 9 4 85 82 99 74 69
% of Total 35.62% 40.98% 36.36% 51.85% 28.17% 38.46% 26.32% 29.41% 64.29% 26.67% 36.80% 34.31% 38.67% 36.63% 41.57%
Wee
kend
Friday 12 15 14 10 8 4 7 5 2 1 39 51 34 21 18
Saturday 20 9 11 10 22 9 3 2 2 5 64 59 75 65 35
Sunday 15 12 17 6 21 3 4 5 1 5 43 47 48 42 44
Weekend Total 47 36 42 26 51 16 14 12 5 11 146 157 157 128 97
% of Total 64.38% 59.02% 63.64% 48.15% 71.83% 61.54% 73.68% 70.59% 35.71% 73.33% 63.20% 65.69% 61.33% 63.37% 58.43%
Total 73 61 66 54 71 26 19 17 14 15 231 239 256 202 166
Datacanbeanalyzedatthestatewide level,aswellasbrokendownbyspecificregion,districtand area. As the above chart shows, further breakdown can reveal what days (and ?mes, ifnecessary) that incidentsare commonlyoccurring.This concentrated levelofanalysis canhelpofficersmakemoreinformedtac?caldecisions.
ForOfficialUseOnly
• Sta?s?cal trend analysis of criminal, crash, and trafficenforcementandincidentsonmajorcorridorsandotherhighwaysona24/7basis.
• Rapidassessmentofspecificincidents.– SuspiciousAc?vityrepor?ng– Majorhighwaycrashesandincidents– Crimesagainstchildren/kidnapping– Highwaydrugandcurrencyseizures
Goals/Objec?ves
ForOfficialUseOnly3/4/2015 9
HSOCContacts
HighwaySafetyOperaOonsCenterGeneralInformaOon/Requests:[email protected]/IncidentReporOng:[email protected]
• DavidPalmer,Major–HighwaySafetyOpera?onsCenter,(512)[email protected]
• KennethMusick,Captain–HighwaySafetyOpera?onsCenter,(512)[email protected]
• KevinWilkie,Captain–HighwaySafetyOpera?onsCenter,(512)[email protected]
