Introduction. Oscar E. Jarquin Chief, Office of Information Technology California Department of Transportation (Caltrans) Los Angeles, California, USA Civil Engineer Land Surveyor GIS Professional Project Manager Program Manager. Governance and Structure. National Academy of Sciences
Oscar E. Jarquin
Chief, Office of Information Technology
California Department of Transportation (Caltrans)
Los Angeles, California, USA
FY 2007 – 2012 AASHTO TIG Focus Technologies
Multi Level Linear Reference System (MLLRS)
NCHRP 20-27 Model
TransformTransformations between supported business location referencing methods (LRM)
A common linear description of the network that can relate all the methods.
County Route Postmile
ORA 405 R 23.000
County Route KiloPost
ORA 405 R 33.877
(Service Oriented Architecture)
Java/XML Message BusENTERPRISE SYSTEM INTEGRATIONService Oriented Architecture (SOA)
St. Hwy Inv.
SOA output via GIS =
Planning, PID, Design, Proj. Mgt., Constr., Operations, etc. for system performance, geometrics, etc.
(loops, CMS, etc.)
Geospatial Data Management
Geodatabase / Web Services
AASHTO’s Technology Implementation Group – or TIG – scans the horizon for outstanding advancements in transportation technology and invests time and money to accelerate their adoption by agencies nationwide. Each year, TIG selects a highly valuable, but largely unrecognized procedure, process, software, device, or other innovation that has been adopted by at least one agency, is market ready and is available for use by other interested agencies.Guided by the vision of "a culture where rapid advancement and implementation of high payoff, innovative technologies is the expectation of the transportation community," TIG’s objective is to share information with AASHTO member agencies, local agencies, and their industry partners to improve the Nation’s transportation system.
Peggi Knight ( Team Leader)
Eric Abrams(GIS Coordinator)
Karen Carroll (LRS Manager)
Mike Clement (QA LRS)
Steve Kadolph(Technical Exp.)
Ryan Wyllie (QA LRS)
David Blackstone, Ohio
Jonathan DuChateau, Wisconsin
John Farley, North Carolina
Oscar Jarquin, California
Thomas Martin, Minnesota
Tim Bisch, Bentley
Gary Waters, ESRI
Mark Sarmiento, FHWA
RegSaouleyrette, Iowa Sate UniversityTIG LRS Team Members
Many technical reports have been completed about developing and integrating a Linear Referencing System (LRS) within a state transportation agency. The magnitude of costs related to the development of a LRS and the commitment required by an agency can be overwhelming, especially if there are no data to support the costs or expected benefits. The Value Analysis (VA) Report will help the states by providing credible quantitative and qualitative benefits obtained from a s state’s investment as well as sample costs and requirements for implementing and maintaining a Multi-Level Linear Referencing System (MLLRS). The use of the word “baseline system” throughout the report represents the minimum requirement for a fully functioning MLLRS. The use of the term “optional functional elements” refers to supplemental elements that will improve the baseline MLLRS.