DISCLAIMER. CE990 Graduate Seminar Presentations

Transcription

1 DISCLAIMER The presentation materials shown in this file were prepared by graduate engineering students for educational purposes within the Department of Civil and Geological Engineering at the University of Saskatchewan. The quality and accuracy of the information presented, including supporting design calculations, drawings, cost estimates, and conclusions reached are not necessarily consistent with professional engineering standards even though reasonable efforts have been made to this end. The practice of professional engineering in Canada can only be undertaken by appropriately licensed professional engineers therefore all contents of this presentation, including all data, figures, drawings, findings and cost estimates cannot be used, in whole or in part, for the design and/or construction of any engineering works without an appropriately licensed professional engineer taking professional responsibility for the contents so used. Any use of, or reliance on, the information contained in this file by any third party is at that party s sole risk. Further, any use of the information contained in this file should be cleared with the author, and must provide full acknowledgement to the author. CE990 Graduate Seminar Presentations

2 The Development of a Municipal-level level Strategic Highway Safety Plan: A Case Study for the City of Saskatoon Mariniel Flores, M.Sc. Candidate, First Year Supervisor: Dr. Peter Y. Park February 3, 2012

3 Outline Introduction Strategic Highway Safety Plan (SHSP) Procedures in Developing a SHSP Network Screening Potential Issues Research Data Research Goal, Objectives and Benefits

4 Saskatoon has experienced a 27% increase in total motor-vehicle collisions and a 30% increase in property-damage-only (PDO) collisions during the past ten years ( ) Number of Collisions 30,000 25,000 20,000 15,000 10,000 5,000 Introduction Year (SGI, 2010) Total Motor-vehicle Collisions PDO Collisions

5 Introduction Injury and fatal collision trends are neither decreasing nor increasing significantly (SGI, 2010)

6 Collision cost trend have increased by 83% Many jurisdictions have limited amount of resources to prevent collisions in different concerning areas Collision Cost ($) 70,000,000 60,000,000 50,000,000 40,000,000 30,000,000 20,000,000 10,000,000 Introduction Year (SGI, 2010)

7 Integrated Safety Management Process (ISMP) 1.Review highway safety information 2.Establish emphasis areas and goals 3.Develop objectives, strategies and preliminary action plans 4.Determine the appropriate combination of strategies 5.Develop detailed action plans 6.Implement and evaluate the performance of the action plans SHSP

8 Strategic Highway Safety Plan (SHSP) Scientific, data-driven, four to five year comprehensive safety plan that identifies emphasis areas and establishes target collision reduction goals Also known as Traffic Safety Action Plan, Strategic Highway Safety Program, etc. Can be evaluated and updated for future use Requires various stakeholders coordinated and active participation

9 Strategic Highway Safety Plan Types of SHSP Federal-level SHSPs Provincial-level SHSPs Municipal-level SHSPs (SHSP) (The City of Hamilton, 2009) (CCMTA, 2011) (SGI, 2010)

10 Strategic Highway Safety Plan (SHSP) Federal-level SHSP CCMTA s Canada s Road Safety Strategy 2015 Encourages each Canadian province to develop its own emphasis areas Includes a total of ten emphasis areas (CCMTA, 2011)

11 Strategic Highway Safety Plan (SHSP) Provincial-level SHSP SGI Traffic Safety Strategy Seven emphasis areas (SGI, 2010)

12 Strategic Highway Safety Plan (SHSP) Municipal-level SHSP Hamilton Strategic Road Safety Program (The City of Hamilton, 2009)

13 Strategic Highway Safety Plan (SHSP) Municipal-level SHSP Hamilton Strategic Road Safety Program (The City of Hamilton, 2009)

14 Procedures in Developing a SHSP Selection of Emphasis Areas Descriptive data analysis Communication between stakeholders (State of Arizona, 2007)

15 Procedures in Developing a SHSP Setting target goals for each chosen emphasis area Basic-level collision data analysis Communication among stakeholders (Broughton and Knowles, 2010) (CCMTA, 2004) 30% 40% 40% 20% 20% 40% 20% 20% 30%

16 In addition, network screening will be conducted to determine hotspots for each chosen emphasis area Using Beta-binomial (BB) test method BB Distribution Network Screening (Kononov and Janson, 2002) i = 1,2,3,,S S = all reference locations N ai = target collision configuration N ti = total collisions α,β = beta parameters BB Probability (Kononov and Janson, 2002) P i = Bernoulli probability (proportion at a target location) P cr = established threshold proportion

17 Network Screening (Sahaji et al., 2011)

18 Potential Issues Nature of the collision data Availability, reliability and quality Challenges associated with the City of Saskatoon s GIS street map database Communication among stakeholders Difficult to include all the stakeholders Certain stakeholders often state their opinions and are more active than other stakeholders

19 Research Data SGI collision databases (collision, vehicle and occupant) City of Saskatoon street map with geographicallyreferenced streets and intersections

20 Research Goal The research goal will be to develop a municipallevel SHSP to assist in the efficient allocation of limited resources to improve road safety

21 Objectives Investigation of methods to identify emphasis areas Investigation of the methods to determine the target collision reduction goal(s) for each chosen emphasis area Investigation of network screening methods for each chosen emphasis area Conduct a case study of developing a SHSP for the City of Saskatoon based on the chosen methods

22 Benefits Combined efforts of the stakeholders will reduce the total amount of expenditures towards road safety improvement programs Development of target collision reduction goals will allow for monitoring and evaluating of the overall performance of road safety improvement projects Visualization of locations of safety concern for each emphasis area can be used to quickly identify high collision locations Economic, environmental and social benefits

23 Acknowledgements Dr. Peter Park City of Saskatoon Department of Civil & Geological Engineering

24 Thank You For Your Time