Intelligent Transportation System
Traveler Information
The Southern California Go511 service provides multi-modal traveler information to through a 511 interactive voice response (IVR) system and the Go511.com web portal. Go511 is operated by LA SAFE and provides traffic information for Los Angeles, Orange, Riverside, San Bernardino and Ventura counties. Traveler information services available include drive times and freeway speeds, road construction and incident notices, transit schedules, carpool/vanpool matching, trip planners, and real time transit departure times.
The Riverside County Transportation Commission (RCTC) and the San Bernardino Association of Governments (SANBAG) formed a partnership to develop a 511 system dedicated to the Inland Empire. The public can access the Inland Empire 511 traveler information service by dialing into the 511 IVR system or going online at IE511.org. Traffic coverage includes Los Angeles, Orange, Riverside, San Bernardino and San Diego County.
Callers in the region dial 511 to access either service; callers dial the same 511 number and are transferred according to the originating area code for landline users or the location of the receiving cell phone tower for mobile users.
Traveler information services integrate multiple sources of ITS data, supported by information flows and coordination between many agencies. In addition to the 511 phone and web site outlets, data feeds are available to third party information service providers. Sources for real-time data include RIITS (District 7), Caltrans Traffic Management Center (District 8 and District 12), the Caltrans Lane Closure System portal, California Highway Patrol CAD and numerous transit operators.
Southern California Regional ITS Architecture 2011 Update
To learn more about traveler information services in the region, view the information in the cross-county services document and Turbo Architecture file:
Stakeholders
The regional transportation planning agencies and Caltrans are identified in the Southern California Regional ITS architecture that have a lead role in implementing and operating projects or programs that support traveler information services.
| Stakeholder | Description |
| Broadcast and Print Media | Represents media outlets in the region who are a consumer of ITS information. |
| Caltrans | California Department of Transportation |
| CTC/RTPA | County Transportation Commission or Regional Transportation Planning Authority. This stakeholder group is regional commissions. |
| Inland Empire Transportation Planning Agencies | This stakeholder represents Riverside County Transportation Commission (RCTC) and the San Bernardino Associated Governments (SANBAG), who jointly operate the Inland Empire 511 system. |
| LA SAFE | Los Angeles County Service Authority for Freeway Emergencies (LA SAFE) |
| Local Jurisdictions | Counties or local cities that are adjacent to county boundaries. |
| Los Angeles County Metropolitan Transportation Authority | Los Angeles County Metropolitan Transportation Authority (Metro) serves as transportation planner and coordinator, designer, builder and operator for LA County. Metro operates over 2,000 peak-hour buses on an average weekday. It also designed, built and operates 73.1 miles of Metro Rail. In addition, Metro funds 16 municipal bus operators and funds a wide array of transportation projects. |
| Private Application and Service Providers | Private entities that provide transportation related applications and services. |
| SCRRA | SCRRA is a joint powers authority (JPA) created in 1991 to operate the Metrolink commuter rail system in Southern California. The SCRRA Board is comprised of voting members from the Los Angeles Metropolitan Authority (LA METRO), Orange County Transportation Authority (OCTA), Riverside County Transportation Commission (RCTC), San Bernardino Associated Governments (SANBAG) and Ventura County Transportation Commission (VCTC). |
| Traveling Public | Traveling public accessing various modes of transportation, including surface street, air, rail/transit, and non-motorized. |
Inventory
Several ITS elements are identified in the Southern California Regional ITS architecture that support information flows and data exchanges for traveler information services.
| Element Name | Stakeholder | Element Description | Element Status | Associated Entity |
| 511 MATIS/Go511 | LA SAFE | Regional 511 system providing traffic, transit, ridesharing, and bike info and trip planning. | Existing | Information Service Provider Other ISP |
| Arterial Traffic Control Systems | Local jurisdictions | Traffic signal systems operated by cities and counties in the region. | Existing | Emergency Management Traffic Management Maintenance and Construction Management Other Emergency Management Other Traffic Management Other MCM |
| Broadcast and Print Media | Broadcast and Print Media | This element represents the TV, Radio, Internet, and Print Media that are users of ITS information. | Existing | Media |
| Caltrans Regional TMCs | Caltrans | This element represents the Caltrans TMCs for the regions within SCAG. | Existing | Emergency Management Traffic Management Maintenance and Construction Management Other Emergency Management Other Traffic Management Other MCM |
| Inland Empire 511 | Inland Empire Transportation Planning Agencies | This element represents the 511 system operating in Riverside and San Bernardino Counties. | Existing | Information Service Provider |
| Private Information Service Provider Systems | Private Application and Service Providers | This element represents private ISPs that access and use data from RIITS. | Existing | Information Service Provider Other ISP |
| RIITS | Los Angeles County Metropolitan Transportation Authority | Regional Integration of Intelligent Transportation Systems (RIITS) provides regional data sharing and exchange, including coordination across all modes of transportation, and is a source of real-time traffic congestion data in the region. | Existing | Emergency Management Information Service Provider Traffic Management Transit Management Other Emergency Management Other ISP Other Transit Management Other Traffic Management |
| SCRRA Rail Information System | SCRRA | Rail Traveler Information System to provide information on trains, at train stations, and via personal devices. | Planned | Transit Management Other Transit Management |
| SCRRA Train Control and Operations Center | SCRRA | Houses the back office systems. Staffed to provide computer aided dispatching (CAD) functions. Coordinate response activities and communication exchanges with other train operations centers. | Planned | Emergency Management Transit Management Other Emergency Management Other Transit Management Rail Operations |
| Transit Operation Centers | CTC/RTPA | Operations centers for transit agencies throughout the region. | Existing | Transit Management Other Transit Management |
| User Personal Computing Devices | Traveling Public | User Personal Computing Devices refers to equipment an individual owns and can personalize with their choices for information about transportation networks. An Internet-connected PC is an example. | Existing | Personal Information Access |
Services
The ITS elements for traveler information have been implemented through a series of projects that serve as key foundation systems. The ITS services supported by these systems are described here and are intentionally generic in nature.
| Project Title | Description | Services | Status | Timeframe |
| 511 Traveler Information | Two traveler information programs provide the public with traveler information services in the SCAG region. The Motorist Aid and Traveler Information System (MATIS) program in Los Angeles County is overseen by LA SAFE and provides traveler information services via phone and web for Orange, Los Angeles, and Ventura counties primarily and a the Inland Empire 511 provides traveler information services via web and phone interfaces to the Riverside and San Bernardino areas . The LA SAFE MATIS program delivers multi-modal traveler information to the public in Southern California through a 511 interactive voice response (IVR) telephone services and 511 website (go511.com). The system was designed to be the real-time and static data collection, analysis, and dissemination tool to provide relevant traveler information to the public as well as monitor and manage service on the freeways in Los Angeles, Orange, and Ventura primarily, with data also provided for Riverside and San Bernardino counties. The system provides information about traffic drive times and freeway speeds, road construction, incidents, buses and trains, carpool/vanpool, bicycle information, and weather. Sources for real-time data include RIITS (District 7), Caltrans Traffic Management Center (District 8 and District 12), Caltrans Lane Closure System portal, California Highway Patrol CAD and Nextrip (transit vehicle status). Callers to the 511 phone system can request roadside assistance from Freeway Service Patrol (FSP) tow trucks. After working cooperatively on the LA SAFE MATIS program, the Riverside County Transportation Commission (RCTC) and the San Bernardino Association of Governments (SANBAG) formed a separate partnership to develop a 511 system for the Inland Empire. The system provides a similar traveler information service with an interactive voice response (IVR) telephone component and a 511 website (IE511.org). Traffic coverage is primarily focused on Riverside and San Bernardino counties, with data also provided for Orange, Los Angeles, Ventura, and San Diego counties. Callers do not have to distinguish between Inland Empire or the LA SAFE MATIS service; callers dial the same 511 number and are handed off to either system depending on the originating area code for landline users or the location of the receiving cell phone tower for mobile users. |
ATIS01-1 - Broadcast Traveler Information - RIITS ATIS01-2 - Broadcast Traveler Information - Regional 511 Systems ATIS02-1 - Interactive Traveler Information - Regional 511 Systems |
Existing |
Standards
The Southern California Regional ITS Architecture provides recommended current, relevant standards for each information exchange between ITS projects for traveler information broadcast and dissemination. Their use is not mandatory. However, in some instances, there may be funding requirements or regional policies that mandate project-specific standards.
| SDO | Document ID | Title | Type |
| AASHTO/ITE | ITE TMDD | Traffic Management Data Dictionary (TMDD) and Message Sets for External Traffic Management Center Communications (MS/ETMCC) | Message/Data |
| AASHTO/ITE/NEMA | View List | NTCIP Center-to-Center Standards Group | Group |
| APTA | APTA TCIP-S-001 3.0.3 | Standard for Transit Communications Interface Profiles | Message/Data |
| ASTM | ASTM E2468-05 | Standard Practice for Metadata to Support Archived Data Management Systems | Other |
| ASTM E2665-08 | Standard Specifications for Archiving ITS-Generated Traffic Monitoring Data | Message/Data | |
| IEEE | View List | Incident Management Standards Group | Group |
| SAE | View List | Advanced Traveler Information Systems (ATIS) General Use Standards Group | Group |
| View List | Advanced Traveler Information Systems (ATIS) Bandwidth Limited Standards Group | Group |
