How To Improve Road Quality

Transcription

1 A Customer Service Level Approach for Maine DOT s Asset Management System Jeffrey L. Zavitski, B.A. Senior Implementation Specialist Deighton Associates Limited Chip Getchell, P.E. Director, Work Plan Division Maine Department of Transportation 2014 Transportation Asset Management Conference, Miami, Florida, April 28, 2014

2 Today s Presentation Acknowledgement of Co-Author Maine s Asset Management Vision Highway Corridor Priorities (HCPs) Customer Service Levels (CSLs) Asset Management System

3 Acknowledgement of Co-Author: Chip Getchell, P.E., Director, Work Plan Division, Maine DOT

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5 Maine Capstone Performance Measures: 1) Customer Satisfaction 2) Safety 3) Customer Service Levels 4) Expenditures per lane-mile Compared to Other States 5) Work Delivered on Time 6) Work Delivered on Budget 7) Administration costs as a percent of Budget 8) Quality and Compliance 9) Performance Management and Employee Development

6 Maine Department of Transportation Facts: 8,818 miles of state maintained highways 2,734 bridges 36 Airports 500 miles of Rail 7 Ferries 450 buses

7 Current Challenges: Extensive system, sparse population (Rank 40 by Population Density), limited resources Declining Highway Trust fund revenues Funding Uncertainty at federal level Volatility of the construction price index Widening gap between available funding and needs Reconstructing all State roads to modern standards is unobtainable

8 Proposed Solution: Implement Transportation Asset Management Utilize Highway Corridor Priorities to prioritize the network Utilize Customer Service Levels to determine desired and acceptable levels of service for each priority. Implement an Asset Management System to examine alternative funding scenarios for multiple assets.

9 Asset Management Vision to Meet Challenges Why? In a word, Necessity! Compared to other states, Maine simply has a lot of miles of road and relatively few people spread out over a large area! Bruce A. Van Note, Deputy Commissioner

10 Prioritize the Network & Set Customer Service Levels

11 Setting the Highway Corridor Priorities Initial effort for Long Range Transportation Plan Developed using several different planning groups and considered different networks and areas: Arterial Road Network Corridors of Regional Economic Significance for Transportation (CREST) Heavy Haul Truck Network (HHTN) Economic Development Districts (EDD) Labour Market Areas (LMA) Border crossings Service Centers Recreational Areas Coastal Peninsula Destinations

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13 Customer Service Levels Customer Service Levels utilize customer focused engineering measures and are reported on a grading scale similar to school (A through F). Establish expected level of service for each asset and Highway Corridor Priority (HCP) based on three factors: Condition Safety Service

14 Calculating the Customer Service Levels: Condition Condition CSL based upon: Highways: Ride Quality (IRI) Pavement Condition (PCR) Roadway Strength (FWD) Bridges National Bridge Inventory (NBI) Ratings Other Assets Percent Useful Life or Remaining Service Life

15 Calculating Customer Service Levels: Safety Safety CSL Based Upon: Crash History Pavement Rutting Paved Roadway Width Bridge Reliability

16 Calculating Customer Service Levels: Service Service CSL Based Upon: Road Posting during Spring Thaw (results in a D) Bridge Posted (results in a D) Congestion

17 MaineDOT Asset Management System Asset Management Links Actions to Outcomes Asset Management Systems evaluate Outcomes for Actions

18 MaineDOT Asset Management System Includes strategic and tactical analyses of highway and bridge assets. Displays impacts of alternative budget scenarios on the each customer service level. Includes Slider Tools for asset allocation Includes true Cross Asset Analysis and Optimization functionality

19 Highway Management Analysis Includes typical performance measures used to trigger maintenance, preservation, rehabilitation and reconstruction treatments. Includes asset management performance measures for tracking impacts of the pavement program on the Customer Service Levels.

20 Asset Management for Highways Performance Measures calculated annually for each segment: Pavement Condition Rating (PCR) Roughness Index (IRI) Rutting Index (RUT) Remaining Service Life (RSL) Condition CSL, Safety CSL, Service CSL Grades A through F Summary measures calculated for alternative budget scenarios: Miles of Pavement with CSL Condition in A through F Miles of Pavement with CSL Safety in A through F Miles of Pavement with CSL Service in A through F

21 CSL Condition Targets for Highways CORRIDOR STRATEGIC TARGETS MINIMUM STRUCTURAL PRIORITY GOAL (average) TOLERABLE ADEQUACY 1 Maintain "Good Roads Cost Less" philosophy using PCR = 3.8 PCR < 3.0 Adequate complete mix of maintenance, preservation and IRI = 100"/mile IRI > 170"/mile Base rehabilitation treatments. RUT = 0.2" RUT > 0.5" Strength Address structural issues and geometric deficiencies (FWD and by History) 2 Maintain "Good Roads Cost Less" philosophy using PCR = 3.4 PCR < 2.6 Adequate complete mix of maintenance, preservation and IRI > 150"/mile IRI > 220"/mile Base rehabilitation treatments. RUT = 0.4" RUT > 0.75" Strength Address structural issues and geometric deficiencies (FWD and by History) 3 Keep pavements in serviceable condition and address PCR = 2.8 PCR < 2.0 Adequate isolated safety deficiencies. IRI = 200"/mile IRI > 300"/mile Base RUT = 0.6" RUT > 1.0" Strength (FWD and History) 4 and 5 Keep serviceable and spot safety deficiencies are to PCR N/A PCR N/A Strength be addressed by Maintenance and Operations IRI = 250"/mile IRI > 350"/mile not RUT = 1.0" RUT > 1.5" determined

22 Treatment Impacts How does each PMS treatment impact the customer service levels:

23 Typical PMS Strategy showing impacts to Condition CSL

24 Typical PMS Strategy showing impacts to Safety CSL

25 Analysis Results: Condition CSL

26 Maine DOT Budgeting and Optimization Flexible PMS Budgeting: Program Budgets: Dollar amounts supplied for maintenance, preservation and rehabilitation type treatments CSL Budgets: CSL Index budgets can be supplied in terms of miles exceeding all CLS levels, miles not exceeding CSL targets and miles not meeting minimum tolerable CSL targets Flexible PMS Optimization: Constrained program dollars, unconstrained CSL Indexes Unconstrained program dollars, constrained CSL Indexes Constrained program dollars, constrained CSL Indexes

27 Typical Analysis Results PMS analysis shows miles of each Highway Corridor Priority with at least one CSL grade or D or F for each alternative budget scenario: $100 Million Scenario Results Expenditures Miles of Road with at least 1 D or F Year PavementPreservation Backlog Maintenance HCP 1 HCP 2 HCP 3 HCP 4 HCP 5 $2, $174,993, $159,329, $70,774, $2, $56,296, $30,776, $ $2, $49,998, $66,330, $26,999, $2, $51,486, $32,022, $27,809, $2, $53,041, $20,836, $28,643, $2, $54,617, $21,639, $29,461, $2, $56,272, $22,161, $14,791, $2, $57,949, $22,654, $12,689, $2, $59,700, $22,682, $11,394, $2, $61,490, $23,444, $33,199, $2, $63,338, $19,558, $34,197, , $2, $65,237, $0.00 $35,227, ,151.69

28 Bridge Management Analysis Includes typical bridge NBI and element level performance measures used to trigger maintenance, preservation, rehabilitation and replacement treatments. Includes asset management performance measures for tracking impacts of the pavement program on the Customer Service Levels.

29 Bridge Management Performance Measures BMS analysis utilizes National Bridge Inventory inspection data and ratings: Culvert Rating Deck Rating Superstructure Rating Substructure Rating Structural Condition Also considers three elements using element level inspection data: Joints Paint System Wearing Surface Includes Customer Service Levels (CSLs) for Condition Safety Service

30 Bridge Management CSLs Condition CSL is entirely based upon Structural Condition Rating Safety CSL is based upon Superstructure condition Substructure condition Scour Criticality Service CSL is based upon Posting Status Posting Limits and Posted Truck Spacing

31 Bridge Management Treatments Treatments are as follows: Culvert Rehab Culvert Replace Bridge Rehab Bridge Replace Deck Rehab Deck Replace Joint Replace Paint Replace Scour Major Scour Ancillary Substructure Rehab Superstructure Replace Wearing Surface Repair Wearing Surface Replace

32 Bridge Management CSL Results

33 Comparing Highways and Bridges

34 Current Asset Management System Status: Highway analysis incorporates HCP and CSL methodology. Bridge analysis incorporates HCP and CSL methodology. Strategic Analysis Module (SAM) slider tools implemented to illustrate the impacts of increasing or decreasing funding to pavement or bridge assets. Management Dashboard implemented for asset management team for viewing analysis results, mapping data and using the SAM tools in an on-line environment.

35 Future Developments Refine Customer Service Levels for remaining assets with inventory systems. Implement Inventory, Analysis and Customer Service Levels for remaining assets (ferries, rail lines, buses, etc.) Implement True Cross Asset Analysis and Optimization functionality available in dtims where individual projects will compete for the same funding based upon benefits, costs and the impacts of the highway or bridge project on the overall Customer Service Level delivery.

36 Thank you!