Virginia Department of Transportation

1
Virginia Department of Transportation

• Inventory and Condition Assessment System
• First Step towards Asset Management

2
Maintenance Business Process ReEngineering - 1995

• Did not have a complete picture of our
  infrastructure and its condition
• Unsure we were making the best possible
  investments
• Unable to evaluate the results of strategies and
  investment
• Unable to advocate for ourselves

3
Maintenance Business Process ReEngineering - 1995

• Comprehensive inventory
• Make best investment strategies
• Consider asset life cycle
• Optimize over all assets and asset life cycle
• Consistent service delivery statewide
• Quantify infrastructure

4
Inventory and Condition Assessment System

• Comprehensive inventory all assets (pavements,
  bridges, drainage, roadside, traffic)
• How many, where, what condition
• Provide data for business decision system to
  follow
• Basis for Asset Management

5
Integrating the Maintenance Business of VDOT

• Start with the infrastructure inventory
• Enable Asset based data recording
• Enable resource incensement to be attributed to
  assets financial, equipment, human
• Support work planning
• Support work implementation
• Support evaluation of results

6
Integrating the Enterprise Business of VDOT

• Managing the Asset through its Life Cycle
• Planning and alternative evaluation
• Design
• Construction
• Maintenance
• Retirement
• Managing the Use of the Asset
• land use permits, hauling permits, routing
• traffic flow, capacity, impact, trip and travel
  analysis

7
Integrating the Business of Transportation

• Intermodal
• Buses, trains, bikes, pedestrians, airports and
  spaceports
• Interagency
• Emergency services, State Police, Environmental
  Quality
• Inter-Jurisdictional
• Cities and town, municipal planning
  organizations, other states

8
Integrating the Business of Transportation
through Asset Management

• Maintenance
• Enterprise
• Commonwealth

9
Integrating the Data of Transportation through
Asset Management

• Location
• Connection
• Time
• Are central issues for the integration of asset
  management data in a transportation agency

10
Integrating the Data of Transportation

• Location in space and on the network
• Connectivity of assets to the network, of parts
  of the network to itself
• Time is an important dimension to support from
  planning evaluation of investment results
• Four Dimensional Data

11
Integrating Transportation Data through Location

• Data integration across different application
  areas is a long-standing need of DOTs
• The concept of location can serve as an
  integrative concept across a wide variety of
  data geographic and other
• Location is central to all core business
  functions of a DOT
• Source NCHRP 359, 1993

12
Integrating the Business and Data of
Transportation

• The linear network or datum is central to all
  core transportation businesses
• Manage the Assets plan, design, construct,
  maintain
• Use the Assets - permit, route, capacity,
  traffic, emergency
• Manage Transportation - to effectively move
  goods and people

13
Model of a Roadway Network in an Asset
Management System
201
Network sections are uniquely numbered
100
102
101
Sections 100,101,102, in order make up one
route Sections 200,101,201, in order, make
another route This arrangement allows the
network to represent Routes and alternate routes
200
Node where sections join, every section has one
node at each end
Network Section or Link represents section of
network between two nodes spatially correct,
curvilinear distance correct
Asset
Distance from the node, and the
offset from the link This distance, plus the
offset, plus network section number uniquely
place the asset ON THE NETWORK. Although
displaying these things in ArcView can look
like this, the software must create and manage
the actual connection of the asset to the
network and be able to re-create these measures
if something changes. The distance and offset can
be expressed in any unit, Including addresses.
THIS IS LOCATION REFERENCING.
14
Location and Connection

• Location of an asset in relationship to the datum
  matters through the datum all linear
  referencing systems can be used
• Topology is more than a display, it is part of
  the data and describes the spatial relationship
  of the asset to the linear datum
• Location is a native descriptor used by DOT
  personnel location on a linear referencing
  system is the real world situation
• Connectedness is a fundamental characteristic of
  a transportation system

15
Time Matters

• Temporal operators and temporal consistency
• Enable analysis of asset history
• Enable analysis of deterioration
• Enable evaluation of results of investments over
  time
• Enable analysis of network status over time
• Enable time-based routing, capacity, and other
  traffic analysis

16

• Transportation data integrate
• through the expression of
• connectivity in the
• data model and
• the data itself.

17
Location, connectivity and time and must be
addressed in the data model
18
Highways by exor

• Datum construction
• Anchor points
• Anchor sections
• These form the datum, the backbone of all the
  linear referencing systems

19
Exor functionality

• Supports multiple Linear Referencing Systems
• County/route/milepoint
• Milepost
• Addresses
• Link/node/offset (link into VDOT legacy highway
  records system)
• Meterpost
• Can generate LRM
• Can accommodate multiple routes

20
NCHRP 20-27

• Exor supports 20-27 data model
• Maximizes the use of legacy data
• Enables enterprise integration using the datum as
  the backbone
• Separates linear events from the datum
• Expandable

21
Integration via Off the Shelf Software

• Purchased ready-to-market functionality
• Forced additional requirement analysis
• Forced issues around standardization of data
• Off the Shelf solution is manageable and
  upgradeable, supported by vendor
• Software is configurable and flexible
• Can support some in-house development

22
Integration via Off the Shelf Software

• Paradigm shift/organizational issues
• Management of future functionality through a
  users group
• Become part of larger user community access to
  best industry practices
• Assume that we can learn from business practice
  encoded
• VDOT procurement model of ownership

23
Integration via Off the Shelf Software

• Manages risks and controls costs of initial
  implementation
• Manages risks around requirements
• May not get what you thought you wanted
• In this rapidly developing asset management
  environment, that can be a good thing

24
Lessons Learned

• Conceptually, a model of integration with
  location, connectivity and time as central
  components is far more different that you think
  it is
• Communicate this concept early and often

25
Lessons Learned

• Choose the software based on the data model
• Understand the data model
• Define business requirements and rules in
  relationship to the data model
• Start with smallest possible asset data sets
• Then, actually prototype business requirements
  and push them through the system

26
Lessons Learned

• Communicate concepts of Asset Management direct
  relationship to the data
• Dont underestimate organizational and human
  issues

27
Lessons Learned

• Begin with intermodal, interagency,
• enterprise-wide asset
• management in mind and
• Start Small