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Engineering Conference
2013
Maintaining and Managing a
Public Roadway FeatureFebruary 19, 2013
Louisiana DOTDCartographic Unit
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Cartographic Unit Duties Maintain a Current Statewide Roadways GIS Feature
Maintain a complete set of Base Map GIS Features
Maintain a set of state, district, parish and city maps
Create and maintain many maps using the base mapslisted above
Maintaining GIS Data Requires Constant Transfer ofInformation Between Local and State Offices
Roadway construction and maintenance
Changes in city limits
Changes in other GIS features
Base Map Public Roadway Feature
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Roadway provides travel of a standard four wheel motorizedvehicle.
Roadway Categories
Public or Private
Public maintained by a public governing authority andopen to travel at all times including state highways, parishroads, and city streets
Private maintained by a private authority or individual andnot necessarily open to public access at all times
Roadway Feature Compiled by Consultant
GPS from FUGRO every 20 feet on State System
Local city or parish GIS if available and acceptable
2007 TIGER streets feature if most acceptable
Base Map Public Roadway Feature
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Data Collection and Systems Management Section
State Highway data collected by the FUGRO ARAN vehicle
Cartographic Unit uses this information as well as other database information tosymbolize the roadways on any given map and to perform some analysis
Number of Travel LanesNumber of HOV Lanes in Both DirectionsPresence of Right Turn LanesPresence of Left Turn LanesPosted Speed LimitSections with Toll ChargeNumber of Signalized at-gradeIntersections
Number of at-gradeIntersections with Stop SignsNumber of Intersections withno Signals or Stop SignsBegin and End Location ofBridgesExisting Lane WidthType of MedianExisting Median WidthType of Shoulder Material
Existing Right Shoulder WidthExisting Left Shoulder WidthOn Route Parking LocationsCurve Classification DataType of TerrainGrade Classification DataSample Section Meeting theSight Distance for Passing
Measure of Existing Right ShoulderWidthMeasure of Existing Left Shoulder WidthOn Route Parking LocationsCurve Classification DataType of TerrainGrade Classification DataSample Section Meeting the SightDistance for Passing Surface Type of a
Given LocationThickness of Rigid PavementThickness of Flexible PavementBase Pavement TypeThickness of Base PavementPresence of CurbPresence of Rail Road CrossingStart Location of Sidewalk RightEnd Location of Sidewalk Left
Identify ADA Compliant Sidewalk
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Cartographic Unit
Purpose
Mapping Software
Conversion to GIS Based Mapping New Linear Referencing System (LRS_ID)
Mapping Process
Users of the Maps and Data
What Can You Do?
Where Are the Maps and Data?
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Cartographic Unit Purpose
Create and Maintain GIS Base Map Features and GIS BasedMaps and Data
Assist with GIS Data Acquisition and Development of GISData Standards and Sharing Methods
State, District, Parish, Urbanized, Urban
and City Base Maps
Hundreds of Maps Created for Various Reasons Using thisSet of Base Maps
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Mapping Software
Formerly Used MicroStation in Combination With IRAS_BTo Create and Maintain Maps
Currently Using ESRI ArcGIS to Create and Maintain Maps
Beginning to Use TerraGo Geospatial Publisher WithArcGIS to Create Interactive GeoPdfs Which Provides a
Simple Means of Receiving Comments From Others
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Conversion to GIS Mapping
The Mapping Unit is Actively Creating GISBase Maps to Distribute to DOTD and the PublicWhich Will Replace Existing Maps
State, District, Parish, Urbanized and Urban Mapsare converted and available on the 85SharedMapsServer, DOTD Intranet and Internet Websites
Mapping Unit Currently Working on City Maps
Once All Maps Have Been Converted,MicroStation Maps Will No Longer Be Available
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LRS_ID is the unique identifier for the roadway feature used to support linear referencing
LRS_ID structure allows for both common and unique identification. (same road unique type)
Cartographic Unit establishes the LRS_ID
Roadway Feature unique identifier
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LRS ID SetupState Maintained Roads
STATE MAINTAINED ROADS
XXX-XX-F-LLL
The LRS ID for state maintained roads will be created from the existing five-digit Control Section number including adash between the third and fourth digit (XXX-XX), a dash (-), the one-digit Feature Type code (F), a dash (-), and athree-digit number representing the sequential occurrence of the feature (LLL).
Note: All state maintained roads will have a twelve (12) character LRS ID which will remain as a fixed identificationnumber for each roadway segment.
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LRS ID SetupNon-State Maintained Roads
NON-STATE MAINTAINED ROADS
PPPXNNNNNNTTTSFLLL
The LRS ID for non-state maintained roads will be created from the three-digit Parish FIPS number (PPP), the one-digitPrefix Code number (X), the six-digit Road Name Code number (NNNNNN), the three-digit Street Type Code number(TTT), the one-digit Suffix Code number (S), the one-digit Feature Type code (F), and a three-digit number representingthe sequential occurrence of the feature (LLL). Discontinuous roadway segments of the same name within the sameParish will be unique based on the sequential occurrence number. The Parish FIPS number is determined based on thephysical location of the road. The Street naming conventions are found in the existing TIGER data. The Feature Typemust be derived from information provided in this document.
Note: All non-state maintained roads will have an eighteen (18) character LRS ID which will remain as a fixedidentification number for each roadway segment.
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Verified Public Roadways
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LA DOTDBase Map
Roadway Features(All Roads)
0 30 60 90 12015
Miles
Need to Determine if "Unknown" RoadsMeet the Specifications of a Road Passable
by a 4 Wheel Passenger Vehicle and Who Maintains it.
Maintenance Provider
State Highways
Unknown Roads
Parish Roads
City Streets
PRIVATE Roads
LADOTD/CCCD Ferries
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State Highway System
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Roadways To Verify
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GIS Base Map Features
Base Map Roadway Feature Is Maintained byMapping Unit Feature Represents All Linear Roadway
Elements of Public Roads Such as Both
Directions of Divided Highways andConnecting Ramps For State Highways andLocal Roads
Many Cultural Features Shown on OriginalMicroStation Maps Are Maintained as GIS BaseMap Features
All GIS Maps and PDFs Will Be Available
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Mapping Process
Base Maps Are Updated Periodically
A GeoPdf Is an Interactive PDF Where One Can Select aFeature on the Map and See Its Attribute Data
A Free Toolbar Can Be Downloaded Which Will AllowAnyone to Red-Line the Map Indicating any Correctionsor Additions Necessary
This GeoPdf Can Be Returned to the Mapping Unit,Imported into the GIS Map, Comments Reviewed, EditsMade, And then an Updated Map Can Be Created andDistributed
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Mapping Process
Completed Maps Will Be Sent to the Local GovernmentOfficials for Certification that the Map is Correct andReturned to the Mapping Unit
Certified Maps Will Be Filed Until they Require MajorChanges
Uncertified Maps Should be Returned for Corrections.Once Changes Are Made, the Process Will be Repeated
Mapping Unit Customers are DOTD Employees, OtherState Employees and the General Public
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Terrago
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Terrago technologies
ArcGIS along with TerraGo Publisher and TerraGo Composer are
used to create GeoPDFs for external use. The data attributes
are embedded in the GeoPDF from the ArcMap application.
Whether it is for field inventory or local government use, TerraGo
Toolbar is a free user friendly application that enables quick
interaction from field to office providing more accurate, real-time
decision making.
TerraGo Technologies | Geospatial GeoPDF, GIS software
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TerraGo Toolbar
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ESRI online corporate
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ESRI online corporate
ESRI has the personal ESRI Online available to anyone.
ESRI working on a version for businesses corporate version
The business model allows close control of the data shared from a
GIS Server service:
Limits access Limits ability to edit
Provides for validation and combining edits by many users
back into a main feature shared for all users to access for
mapping purposes
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Paper Maps
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Printed maps for review
For those not able to use either the TerraGo GeoPDF orthe ESRI Online applications, printed maps can be sentout for review.
A map will be sent out that identifies the roads whichneed ownership verified.
Any other comments can also be provided.
The maps will have to be returned for processing in theoffice.
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MAP 21
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MAP 21
MAP 21 is a new bill passed by congress.
Requires all public roads in a GIS.
Change in functional classification.
Urgent need for collaboration .
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Collaboration of State and Local Governmentto Maintain and Distribute a Statewide Roadway Feature
As part of the plan to support collaboration between state and localgovernment, DOTD has created this roadway feature to be used withcurrent technologies to enable interaction between state offices and local
agencies to maintain the most accurate data for reporting efforts.
With current reductions in workforce, DOTD must rely on assistance tomaintain these roadway features. DOTD is required to submit reports tothe Federal Highway Administration. The accuracy of these reports affectfunding which is the return to the local agencies.
The most important issue that must be addressed is to determine ownershipof roadways and eliminate linear features that are not roads based on theearlier definition. This can only be done by state and local governmentagencies working together.
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Met with local parish engineers and officials
Mutual agreement to combine efforts using the latest technology
Federal Highway Administration reporting required and accuracy of thesereports affect funding which affects local agencies.
Priorities Identify public roads, private roads and lines that are not roads Identify ownership/maintainer of the roads
Verify road data
Technologies TerraGo Technologies GeoPDF and GeoPDF Toolbar ESRI ESRI ArcGIS Online Printed Maps
Collaboration of state and local government to maintain and
distribute a free statewide roadway feature
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What Can You Do?
Collaboration Between DOTD and Local Government OfficialsIs Crucial to Maintain Accurate Maps Reflecting Roadway,Boundary, and Name Changes
You, at the Districts, Have More Contact and Relationships
With the Local Governments
The Cartographic Unit Needs Your Assistance to Improve TheirContacts With the Local Government Personnel
You Also Have the Best Knowledge of the Roads and the Citiesor Communities in Your Area
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What Can You Do?
Base Map Roadway Feature Contains Roads WhereOwnership Has To Be Verified; Public Road, Private Road orNOT A ROAD
Assist the Cartographic Unit by Reviewing the Maps VeryClosely and Identify Necessary Corrections and ProvideInformation Concerning the Corrections.
Likewise You Can Assist the Data Collections Units by
Notifying Them of Any Known Discrepancies in Data
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225-379-1283
P.O. Box 94245, Section 21
Baton Rouge, LA 70804-9245
Contact Information
Brian ReighI.T. Geographic Senior Analyst
Cartographic Mapping UnitLouisiana Department ofTransportation & Development
Darryl W. MackI.T. Geographic Project SupervisorCartographic Mapping UnitLouisiana Department of
Transportation & Development
225-242-4558
P.O. Box 94245, Section 21Baton Rouge, LA 70804-9245