1 / 23

Evaluating the Effect of Safety Interventions on Taxicab Driver Violence

Evaluating the Effect of Safety Interventions on Taxicab Driver Violence. Cammie Chaumont Menéndez September 22, 2010. Study Purpose. Evaluate effects of: Cameras Partitions Provide usable data from a national perspective Guide policy. Study Logistics. Involves strong collaboration with

camden
Download Presentation

Evaluating the Effect of Safety Interventions on Taxicab Driver Violence

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Evaluating the Effect of Safety Interventions on Taxicab Driver Violence Cammie Chaumont Menéndez September 22, 2010

  2. Study Purpose • Evaluate effects of: • Cameras • Partitions • Provide usable data from a national perspective • Guide policy

  3. Study Logistics • Involves strong collaboration with • City taxi regulators • Statistical units in police departments • Funding! • Travel

  4. Study Logistics • Ethics review and approval • Data requests • Level of commitment (LOA, etc) • Data retrieval • Data availability

  5. . Study Cities with Cameras

  6. . Study Cities with Partitions

  7. . Study Cities to Serve as Comparisons

  8. Next Steps • Lay groundwork for data transfer • Conduct data extraction • Recruit more cities

  9. Evaluating Risk Factors Associated with Violent Events Among Taxi Cab Drivers September 22, 2010 – Chicago, Illinois National Institute for Occupational Safety and Health

  10. Objectives of Taxicab Driver Survey • Determine whether taxicab cameras are associated with a reduced risk of robberies and injuries from assaults • Determine whether individual risk factors, safety training characteristics and taxicab driver behavior are associated with robberies and injuries from assaults

  11. Study Design • Survey • Study population – licensed taxicab drivers in 3 cities (Houston, TX ; San Antonio, TX and Minneapolis, MN) • Administer questionnaire at time of license renewal • Incentive – gas card

  12. Partners • Taxicab Regulators • Police Departments • IATR

  13. Taxicab Driver Survey Protocol Timeline • Spring 2011 - Human Subject Review Board (HSRB) approval • Fall 2011 - Office of Management and Budget (OMB) approval • January 2012 - Start of study

  14. Taxicab Security Camera System Evaluation StudyNational Institute for Occupational Safety and HealthDivision of Safety Research

  15. Objectives of Camera Evaluation Study • Determine minimum requirements for taxicab camera system evaluation • Evaluate technological advantages and limitations of sample taxicab cameras in use • Determine research needed to improve taxicab cameras to maximize effect • Develop technical guidance for taxicab security camera selection and use

  16. Status of Evaluation Study (1) • Completed study protocol • Protocol has been reviewed by stakeholders (IATR, TLPA, manufacturers and individual taxi-diver safety activist) • Protocol has been modified to address comments from stakeholders and NIOSH human subject review board (HSRB) • Protocol has been approved by NIOSH HSRB

  17. Status of Evaluation Study (2) • Measured taxicab light intensities under 7 light conditions (daylight, overcast, very-dark cloudy, full dark, full dark with back-lit and sunrise/sunset with front-lit) • Collected sample taxicab cameras for test: FareView, DriveCam, AngelTrax, 3rdeyecam (JanusV2), VerifEye (G4 Single cam, G4 Dual Cam) and 247Security (in near future) • Purchased lighting and test equipment.

  18. Protocol Procedures • Determine minimum requirements for Cab-Camera and Recorder • Evaluate taxicab camera systems using minimum requirements • Determine necessary future research for technical improvements and feasibility • Develop taxicab camera system selection guidelines

  19. Some Procedure Details (1) • Determine minimum requirements for Cab-Camera • Reference camera takes photos of human subjects in 5 cab seats and 7 cab light conditions • Software manipulates photos to different photo resolution, dynamic range, motion blur and distortion conditions • Photo evaluators evaluate and vote for minimum requirements of photo resolution, dynamic range, motion blur and distortion based on facial image quality

  20. Some Procedure Details (2) • Evaluate sample taxicab camera systems • Individual sample Camera takes photos of human subjects in 5 cab seats and 7 cab light conditions • Software determines photo resolution, dynamic range, motion blur and distortion parameters • Compare photo parameters with minimum requirements • Determine if the camera passes evaluation

  21. Some Procedure Details (3) • Minimum requirements for reorder recording • Event triggers: door open/close, engine start/stop, meter start/stop, sudden acceleration/deceleration, panic button pushing, and voice (optional) • Record event images: 10 sec before event to 30 sec after event @ rate of >= 1 image/sec • Non-event recording: >= 1 image/minute • Retain >= 72 hrs of event and non-event images

  22. Some Procedure Details (4) • Requirements for recorded data security and privacy • Software password or hardware key protected • Limited number of password /hardware key distributed by vendor • Software should be able to control the number of personnel who can access recorded data • Data log should be created whenever recorded data are accessed

  23. Some Procedure Details (5) • Minimum requirements for recorded data storage durability • Enclosure resistant to damaging, removing or opening by small common tools • Fireproof: 300-320 degree C for >= 5 minutes • Waterproof: in water, under 5 meters for >= 72 hrs

More Related