Applications in GIS
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Displaying Results 11 - 14 out of 14 |
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| 11 | Practice: | Orange County California’s GIS for Transit Planning |
| Subject Areas: | Asset Management Operations Planning | |
| State: | California | |
| Organization: | Orange County Transportation Authority | |
| Contact: | Shirley Hsiao | |
| Email: | shsiao@octa.net | |
| Phone: | (714) 560-6282 | |
| Description: | Because the Orange County Transportation Authority (OCTA) provides transit service in a generally automobile-oriented part of southern California, OCTA must plan its services and operations for maximum effectiveness and efficiency. To help with this challenge, OCTA has instituted a geographic information system (GIS) that provides to OCTA detailed information on the demographic and land use characteristics of all locations throughout its service area. | |
| 12 | Practice: | Quantm Systems |
| State: | California | |
| Organization: | Quantm Ltd | |
| Contact: | Len Bettess BE(Civil), MEI Aust, CPEng | |
| Title: | Manager, Business Development & Engineering - Americas | |
| Email: | len.bettess@quantm.net | |
| Phone: | (702) 837-1493 | |
| Description: | The Quantm system is an automated route optimization technology that simultaneously considers the numerous variables and constraints defined by the project team, including terrain, design standards, existing infrastructure, geological cost variances, and community and environmental constraints. The system considers millions of alternative routes for any given scenario of constraints and endeavors to meet the defined constraints before refining the alignment to minimize earthworks and structures. It is a support system to the project team that will use its skills and local knowledge to determine the constraints and review and select the ‘preferred’ alignment(s) from the range of alternatives identified by the system. Quantm and GIS are often used in conjunction on projects. GIS data can be converted into Quantm format for use in the alignment selection process and shape files can be exported out of Quantm for the final alignments. The center-line of the preferred alignments can be easily exported into CAD packages such as MXROAD, InRoads, Terramodel, 12d for the detailed design. The boundaries can be input manually or imported from GIS. These can be used to protect sensitive sites. Linear features such as roads, rivers and rail can be defined or imported from GIS and have crossing rules associated with them. Engineering parameters such as maximum grade and minimum radii of curvature and formation width are defined so that any alignments identified meet the required specifications for speed and safety. Geology zones are defined with associated rules and extraction costs for each strata within each geology zone. Then unit costs are input for earthworks (cut, fill, haulage) and structures (bridges, tunnels, retaining walls and culverts) are input. The start and end points of the project are defined and the system will then consider millions of alternatives before delivering a range of low-cost options, which best meet the constraints, to the planner for review. The speed of the system means that multiple scenarios can be defined and submitted for optimization. In addition, planning teams can rapidly investigate and respond to the new constraints that inevitably emerge during the environmental and public consultation process. | |
| 13 | Practice: | Resource Agency Contact Information GIS |
| State: | California | |
| Organization: | California Department of Transportation | |
| Contact: | Lefteris Koumis | |
| Email: | lefteris_koumis@dot.ca.gov | |
| Phone: | (916) 653-0053 | |
| Description: |
Current federal transportation regulations state that Caltrans and regional agencies must consult with resource agencies during the development of their long-range transportation plans and transportation improvement programs. Accordingly, a list was prepared by the Divisions of Transportation Planning and Environmental Analysis to identify these resource agencies.
The Division of Environmental Analysis then developed a web-based tool GIS tool to assist primarily Caltrans staff and regional transportation planners with the identification of the field offices that should be consulted during the development of their transportation plans. |
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| Related Documentation: | https://dot.ca.gov/programs/transportation-planning/economics-data-management/geospatial-analysis | |
| 14 | Practice: | Southern California Association of Governments ACCESS Project |
| Subject Area: | Planning | |
| State: | California | |
| Organization: | San Diego Associations of Governments | |
| Contact: | Bob Parrott | |
| Title: | Director of Research | |
| Email: | bpa@sandag.cog.ca.us | |
| Phone: | (619) 595-5231 | |
| Description: | Southern California Association of Governments (SCAG) initiated an ambitious project called "ACCESS" with the goal of making Southern California the "most information accessible region in the world." GIS was used as the core technology to support this decisionmaking framework. ACCESS project provided local jurisdictions uninhibited access to many different data sources to encourage participation in the regional planning processes. | |
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