The Costs & Benefits of Implementing a MLLRS. Sponsored by the AASHTO and FHWA and Conducted in the NCHRP

Transcription

1 The Costs & Benefits of Implementing a MLLRS Sponsored by the AASHTO and FHWA and Conducted in the NCHRP

2 Value Engineering OThis presentation is based on the value engineering study that was conducted for the NCHRP to support the NCHRP Project 20-07, Task 302. OThe task was requested from the American Association of State Transportation Officials (AASHTO) OThe report was conducted to identify the costs and benefits of implementing and maintaining a statewide Multi-Level Linear Referencing System (MLLRS)

3 Value Engineering O The VE study was conducted at the Iowa Department of Transportation with a study team consisting of: Renee L. Hoekstra, CVS, RH & Associates Jerome Breyer, Works Consulting Oscar Jarquin, California Department of Transportation Jun Wu, North Carolina Department of Transportation Michael Sheffer, Maryland State Highway Administration Thomas Martin, Minnesota Department of Transportation Peggi Knight, Iowa Department of Transportation Eric Abrams, Iowa Department of Transportation Karen Carroll, Iowa Department of Transportation Ryan Willie, Iowa Department of Transportation Reginald Souleyrette, University of Kentucky, Civil Eng. Bruce Aquila, Intergraph Gary Waters, ESRI

4 Presentation Objectives O What is LRS? O The definition of a MLLRS O Why implement a MLLRS O The benefits and costs associated with a MLLRS O Implementation considerations O Examples

5 What is a Linear Referencing System O Ability to locate on a linear network using one to many linear referencing methods O A linear referencing method is a standard way to locate on a linear network. Examples: O Reference Post O Literal Description O Mile Point O Coordinate Route O Having a LRS provides the ability to take disparate data and make better business decisions

6 Linear Referencing System (LRS) O Gives DOT a common centerline network for all roads O Locate on network using multiple linear referencing methods O If data is located using LRS, linear overlays and dynamic segmentation can happen O Can include a time component

7 What is a MLLRS? O Meets the NCHRP 20-27(2) data model O Includes multiple linear referencing methods, multiple cartographic representations and multiple network representations O Associates with a central object referred to as a linear datum O Meets the needs of integrating increasing amounts of linearly referenced data O Logically linked with other organizational electronic management systems

8 Linear Referencing Summary Business Data Cartographic Representation Datum Routable Network 10

9 Why is it important to implement MLLRS? O Data and information more readily available O Quality, timeliness and efficiency improvements O Improved analysis leads to data-driven decision support O Improved communication and information sharing O Improved customer service

10 Benefits of a MLLRS in a State O Quantitative Benefits Agency O Identified as time and cost savings by reducing: O Staff hours O Operational hours O Hours within other departments O Improved stewardship of data O Business/Operational unit improvements

11 Quantitative Benefits O Business/Operational Unit Improvements O Sample Business/Operational Units Used O Safety improvements O Reduced level of risk for litigation O Reduced impacts to projects O Reduced maintenance O Baseline Savings O $1.1 million O Optional Functional Elements Savings O $2.5 million

12 Qualitative Benefits O Ease of use and accessibility O Flexibility and integration O Quality of data O Internal and external collaboration O Data-driven decision support

13 Other Identified Benefits O Facilitates the Breakdown of Departmental Silos O Able to Take Advantage of External Resources O Increased Opportunity to Integrate MLLRS into the Field Operations

14 Costs to Implement a MLLRS O Capital Costs O Baseline - $2 million O Optional Functional Elements O Manage Change - $31,650 O Model Connectivity - $795,000 O LRM Development - $40,000 each

15 Costs to Implement a MLLRS O Maintenance Costs O Baseline - $252,000 O Optional Functional Elements O Minor adjustments only

16 Cost/Benefit Analysis O Based on a 5-year period O 3% escalation rate, constant dollar approach O Baseline - $2.5 million in savings O Cost/Benefit Ratio 2:1 O Optional Functional Elements - $10 million in savings O Cost/Benefit Ratio 21:1

17 MLLRS Implementation Considerations! O Organizational Support O Establish model specifications and scope of work to be used to obtain outside services and/or complete the work with existing staff O Identify functional requirements needed within the agency to meet the baseline performance attributes O Establish a maintenance plan and approach, capitalizing on lessons learned

18 MLLRS Implementation Considerations O Establish a training plan and approach O Secure resources manpower, funding, staffing, contingency for staff turnover, etc. O Determine the schedule progress timeline and monitor it O Set and manage internal expectations O Develop an outreach plan internally with staff and management

19 MLLRS O MLLRS can make DOT more efficient by O Linear overlays O Common centerline O Transformation of one LRM to another O Standard collection methods O Dynamic segmentation of routes based on business data and LRM O MLLRS is a tool that makes data integrate

20 Intersection Linear Overlay Dynamic Segmentation Analysis Speed Limit AADT Values Pavement Type 0 Asphalt Concrete Asphalt IRI Linear Query Results where: Speed => 45 AADT < Pavement = Asphalt IRI =<

21 Sign Management O Signs located in the field O Coordinate Route LRM O Reference Post LRM O LRS assigns LRM location O Reference Post on primary O Signs can now be viewed in GIS O Aerial imagery O LiDAR O Data and geometry stored in Oracle

22 Sign Management

23 Five Year Program O LRM Reference Post O Budget and planning for projects O Process in place since 2006 O Process to digitize new roads O LRS can handle proposed roads O Logistics to get new roads added

24 Five Year Program

25 Electronic Records Management system (ERMS) O Most DOT documents have a location O Add geometry to documents O Documents get spatial location from O An LRS LRM O Reference a system that has geometries O Spatial location enables ERMS and other business applications

26 ERMS

27 ERMS

28 Maintenance O Uses LRS to make a tie to route O Segments produced to display data O Snow Plow locations O Materials used O Pavement and Air temperature O Queries and linear overlays

29

30

31

32 ROI for GIS? A 20 year ROI analysis for Iowa Geospatial Infrastructure (IGI) shows a Net Present Value of $271 million, a Present Value of Costs at $56 million and an annualized Return on Investment of 24%. For every dollar spent on IGI, $5 are generated in benefits.

33 ROI for GIS? O Labor avoidance acquiring, creating and manipulating cadastral data = 725 hours/year O Labor avoidance researching ownership = 438 hours/year O Labor avoidance acquiring, creating and manipulating hydrology = 510 hours/year O Labor avoidance updating city limits in GIS = 1040 hours/year O Labor avoidance maintaining & analyzing LRS & GIMS = 2912 hours/year

34 Questions