CFC Interactive Map – Release Notes
30-Mile Studio Zone and Secondary Studio Zone Interactive Map
Welcome to the California Film Commission’s new interactive 30-Mile Studio Zone Map.
The 30-Mile Studio Zone, a geographic area within a 30-mile radius of the intersection of Beverly and La Cienega Boulevards, is used by producers and entertainment industry labor unions to determine work and per diem rates, driving distances and various rules for crew members. The more-recently added Secondary Zone Extension adds an additional 10 miles and includes Agua Dulce, Castaic (including Castaic Lake), Leo Carrillo State Beach, Ontario International Airport, Piru, Pomona (including the L.A. County Fairgrounds) and the Metro-Goldwyn-Mayer Ranch property.
The new map streamlines and enhances the process of determining if a location lies within the primary or expanded zone. It’s packed with advanced features and is super-easy to use. Features include: searches by street address, GPS coordinates, name of location; distance-from-zone-center calculator; location markers with zoom capability that can be dragged on screen; location popup info to determine placement within/beyond zones; map overlay to show jurisdictional boundaries; and optimization for all major web browsers (desktop and mobile).
The CFC does not administer the 30-Mile and Secondary Studio Zone boundaries. For information on locations near the edge of the Zone, please consult the CSATF map provided by Contract Services Administration Trust Fund as well as specific union agreements to confirm whether they fall within the Zone.
Please review our Browser Compatibility Statement.
Release 1.0 – CFC Interactive Map
July 20, 2018
Features in this Release
- Users may click directly on the map or enter street addresses, GPS coordinates, or well-known place names to display location GPS coordinates and distance from the center of the zone.
- Location markers may be dragged to new locations to display updated location and distance information.
- Location markers are clickable to zoom in / out.
- For locations outside the 30-Mile Studio Zone, location marker popups specify whether the location is within or outside the Secondary Studio Zone.
- Users may click on the City Boundaries button to view an overlay depicting the boundaries of incorporated cities within the 30-Mile Studio Zone and Secondary Studio Zone. This overlay can be hidden by clicking Hide Boundaries.
Incorporated Cities in the Zones
Incorporated cities that fall within the Secondary Studio Zone include: Anaheim*, Brea*, Camarillo, Chino, Chino Hills, City of Industry*, Claremont, Costa Mesa, Covina*, Diamond Bar, Fillmore, Fountain Valley, Fullerton*, Garden Grove, Glendora*, Huntington Beach*, Irvine, La Verne, Lancaster, Malibu*, Montclair, Moorpark, Newport Beach, Ontario, Orange, Palmdale, Placentia, Pomona, San Dimas, Santa Ana, Seal Beach*, Stanton*, Thousand Oaks*, Tustin, Upland, Villa Park, Walnut*, Westminster*, and Yorba Linda. *These cities also fall partially within the 30-Mile Studio Zone.
While city boundaries are displayed, clicking within one of the boundaries displays the city name. Colors for incorporated cities were selected to match those used in the original Thomas Bros. Maps / Thomas Guides.
Counties in the Zones
The city boundary overlay also depicts the boundaries of the three counties that fall within the 30-Mile Studio Zone – Los Angeles County, Orange County, and Ventura County – along with San Bernardino County, which falls within the Secondary Studio Zone.
Clicking in an unincorporated area or within one of these counties outside the Secondary Studio Zone displays the county name. The color for these four counties was selected to match the one used in the original Thomas Bros. Maps / Thomas Guides. Note: County boundaries displayed reflect that the state’s territorial boundaries extend three nautical miles from the coast.
Center of the 30-Mile Studio Zone
The center of the 30-Mile Studio Zone is the center of the Beverly Boulevard and North La Cienega Boulevard intersection.
GPS coordinates used for the center are: 34.07604329999999, -118.37661700000001
Displayed Circumferences for the 30- and 40-Mile Studio Zones
The studio zone circumferences displayed are circles with radii of 30.04 and 40.055 miles, respectively, to visually approximate 30 and 40 miles when calculated by the distance calculation used.
The default Earth radius used by this calculation is Earth’s radius at the equator. We instead used Earth’s mean radius of 6371 km. After this modification, distances calculated match those of Google Maps’ measure distance tool to two decimal places.
Accuracy Near the Edge of the Zone
The distance calculation used takes into account that the Earth is a sphere but not that it is an oblate spheroid. This introduces errors as you approach the edge of the zone.
Spherical earth computations result in “underestimates of real world distances measured in the direction of the equator … and overestimates for those measured in the direction of the poles.” [Source: https://cs.nyu.edu/visual/home/proj/tiger/gisfaq.html] As a result, calculated distances are off by the following amounts:
- At 30 miles –
- In directions due north / south, distances are overestimated by approximately 380 feet.
- In directions due east / west, distances are underestimated by approximately 350 feet.
- At 40 miles –
- In directions due north / south, distances are overestimated by approximately 500 feet.
- In directions due east / west, distances are underestimated by approximately 460 feet.
Browser Compatibility Statement
The CFC Interactive Map is designed for use with the following browsers:
Desktop Browser Support
Note: Internet Explorer is not supported. Please use one of the above browsers.
Mobile Browser Support
- Safari for iOS
- Chrome for iOS
- Firefox for iOS
- Chrome for Android
- Firefox for Android
- Amazon Silk for Kindle Fire