Preparing VDOT’s GIS data for
the Implementation of Bentley
Superload
Brian Young – GIS Technical Lead (ARS)
Paul Bucher – Quality Assurance Officer
Jean Tingler – RNS Program Manager
Archer Carr – RNS Technical Lead and Supervisor
David Aikin – Software Tester
Tim Klinker – GIS Analyst / Software Tester
Dewey Siegler – GIS Analyst
Doug Horton – Bridge Engineer
Jonathan Mallard - Bridge Engineer
Prasad Nallapaneni - Bridge Engineer
BENTLEY SUPERLOAD
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Bentley SUPERLOAD is a complete
solution for intelligent permitting and
routing of oversize/overweight
(OS/OW) vehicles.
Components
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DMV VAHPS
Web Interface
Workstation Interface
Network Builder
Bridge DB Maintenance
Bridge Update
Visual Compare
BENTLEY SUPERLOAD
Workstation Overview Map
The workstation
software shows
an overview
map of Virginia
with user tools.
BENTLEY SUPERLOAD
Web Overview Map
The web
software also
shows an
overview map
of Virginia with
selectable tools.
Intelligent Routing
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SUPERLOAD performs real-time route validation based
on the size and weight of the permit vehicle and the
constraints and conditions of specified routes. Bridge
clearances, bridge live-load
analyses, and temporary
restrictions help
determine routing
feasibility.
Intelligent Routing
The Superload
System intelligently
routes from point A
to B taking into
consideration bridge
clearances, bridge
live-load analyses,
and temporary
restrictions.
Point A
Point B
Comprehensive Road Network
Modeling and Analysis
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SUPERLOAD has built-in knowledge of the roadway
network and provides the tools to maintain a digital
model of the highway system. This includes the
location of all structures, detailed interchange
configurations, bidirectional clearances, and all
temporary restrictions. Analysis
processes determine all
structures involved in the trip
and analyzes all vertical and
horizontal clearance limitations.
Comprehensive Road Network
Modeling and Analysis
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Superload also includes integrated
live-load bridge analysis of each
structure to be crossed.
Comprehensive Road Network
Modeling and Analysis
The system
analyzes all
structures and
interchange
supernodes in
the system when
routing a trip.
STRUCTURES
INTERCHANGE
SUPERNODE
SUPERLOAD Restriction
Manager
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Restriction Manager is a software
module that can be added to a
SUPERLOAD implementation to help
organizations manage restriction
events, from full route closure to
limited access and route advisories.
VDOT GIS Data
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VDOT was tasked to incorporate the
department’s GIS Data with the
Bentley Superload software.
VDOT is working with the DMV to
implement the Bentley Superload
Software.
The DMV is hosting the
application.
VDOT GIS Data
VDOT’s GIS Data consist of:
 Bridge Location Information
 Road Network Information
Bridge Location
Information
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Location data of all bridges, culverts
and tunnels on the highway system in
Virginia.
Whether the structure crosses all lanes
or only one direction of the
highway.
Vertical and Horizontal
clearances.
On or Under information.
Road Network
Information
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Highway GIS data. Routable Roadway
Network.
Route Numbers
Road Class – Interstate, US Highway,
State Highway.
Directionality
Mileage
VDOT Business Data
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Materialized View of PONTIS; the VDOT
system for storing Structure information.
Contains Clearance data of all structures.
The MV_STRUCTURE_CAPACITY_PONTIS
table is inputted into the Superload network
builder.
SUPERLOAD Route Network Overview
INTERSECTIONS
HIGHWAYS
INTERSTATES
BRIDGES
SUPERLOAD Route Network
Components
VDOT GIS LINKS
Interstate I-66
Interstate I-66
Link # 47
Link # 48
SUPERLOAD Route Network
Components
VDOT JUNCTIONS (NODES)
Junction ID 182250
Junction ID 182251
SUPERLOAD Route Network
Components
VDOT STRUCTURES – Bridges, Culverts, Tunnels
Bridge
Bridge
Bridge
Federal ID 6176
Federal ID 6299
Federal ID 6301
SUPERLOAD Route Network
Components
INTERCHANGES
Interchanges are defined in the superload system.
Superload Network Builder
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Superload incorporates the VDOT GIS
Data by using the network builder.
Superload Network Builder
The Superload network builder:
 Saves the current network and
interchanges.
 Converts the GIS data into Superload’s
proprietary format.
 Adds bridges to the roadway network based
on the mile points.
 Adds and updates interchanges.
 Updates clearance data.
Superload Network Builder
The Network builder uses the databases:
 SDE_VDOT_STRUCTURE_MPST_LRS –
VDOT structure location data. Also includes
the MV_STRUCTURE_CAPACITY_PONTIS
table – Structure clearance data.
 SDE_VDOT_EDGE_RTE_OL_MPST_LRS –
VDOT route data. Also includes the
SUPERLOAD_ROUTES table – The list of
routes to be included in Superload.
 SDE_VDOT_RTE_OL_MPST_LRS – VDOT
route data.
SDE_VDOT_EDGE_RTE_OL_MPST_LRS
SDE_VDOT_RTE_OL_MPST_LRS
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These databases are created as part of
the RNS LRS (Linear Referencing
System) build process.
Updated Quarterly
The links and attributes are edited,
created and updated by Roadway
Centerline Editors
SDE_VDOT_STRUCTURE_MPST_LRS
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VDOT structure location data
Contains structures located along the
VDOT LRS (linear referencing system)
Each structure has a unique Federal ID
and VA Number with Jurisdiction
Each structure is applied to a route
Contains ON_UNDER Field
SDE_VDOT_STRUCTURE_MPST_LRS
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VDOT Structure locations are maintained and updated in RNS
(Roadway Network System) via a web interface and interactive
map.
The structures are applied to the Linear Referencing System in
real time via RNS.
The structures are exported
and stored in a layer during
the quarterly LRS build
process.
The structures are
continually updated and edited.
MV_STRUCTURE_CAPACITY_PONTIS
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Materialized View of the VDOT PONTIS
system
PONTIS is VDOT’s system of record for
all Structure data and information
Contains all Clearance Data
Each record has a BRKEY to link it to
the Federal ID
SDE_VDOT_EDGE_RTE_OL_MPST_LRS
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VDOT LRS (Linear Referencing System) Data
Contains roadway links with mileage
assigned to the link
Contains the Route Names
Mileage is assigned by From and To
measures
The measures in between are interpolated
along the links
SUPERLOAD_ROUTES
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Table which contains the list of routes
that are to be included in the
Superload Network
Institutional Routes are excluded
SR48 The Blue Ridge Parkway is also
excluded
SDE_VDOT_RTE_OL_MPST_LRS
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VDOT route data
Contains one feature per route name
Contains the Route Signed Direction
Code
Superload Network
The Superload Network contains the
Roadway Network (links and nodes),
Structures, and Interchanges.
It also includes the structure
clearance data attached to
each structure.
Superload Network
The Superload Network
contains a routable highway
network.
It contains Interstates, US
Highways and State Highways.
Two County Roads are also
included.
Superload Network
Each Link in Superload
contains a Begin
Location, Distance and
End Location.
It also includes a LID
which orders the links in
the directions of travel.
Superload Network
In between each Link the Superload Network are Nodes.
Each Node contains the possible travel directions at that point in the
roadway network.
Superload Network
Structures
shown in the
Superload
workstation
software.
The
structures
are placed
on links
based on
milepoints.
Structures
Superload Network
Each Structure in the network has information attached to it.
•Route
•County
•Direction
•Distance
•Culvert (Yes/No)
•Horizontal Clearance
(Cardinal and Non-Cardinal)
•Vertical Clearance
(Cardinal and Non-Cardinal)
Superload Network
Interchanges
• Interchange Definitions are
entered into digital text form
and called Supernodes.
Superload Network
INTERCHANGE DEFINITIONS
• Text in a table describes the possible turns in an interchange
definition. It also includes any bridges encountered in the turn.
Superload Network
The Supernodes allow you to make turns and analyze any structures
encountered in the turns.
Structures 09750, 09748,
10000 and 09976 are
encountered and analyzed in
this turn.
Superload Overview
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All the components of the Superload
Network combine to allow the routing
of oversized/overweight vehicles.
Superload Overview
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The system will route and analyze your inputted
trip based on the superload network created and
the GIS data inputted into the system.
Superload Overview
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After the Analysis is complete in the
system it will return your results.
This trip shows 1 clearance problem
and 5 load analysis failures.
Superload Overview
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The reports show you the failed
structures.
Superload Overview
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A successful trip will return a message
stating it found no clearance or load
failures.
Conclusion
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With the use of VDOT’s GIS Data the
Bentley Superload System will be able
to successfully route oversized and
overweight vehicles saving time and
money.