Intelligent Transportation System
Non-motorized transportation provides a sustainable alternative to the impacts associated with driving. Switching automobile trips to biking and walking improves mobility and air quality. In the SCAG region, the mode share for non-motorized work trips is 3% while the share of all trips is 12%. Non-motorized transportation in the region is supported by land use decisions that promote bike and pedestrian friendly development and facilities that provide pathways and trails for bicycle and pedestrian users. Cities and county transportation agencies in the SCAG region have planned and built a regional bicycle transportation network. The networks consist of off road (Class I) and on-road (Class II and Class III) facilities that interface with transit routes and pedestrian activity centers. Several counties in the SCAG region maintain a non-motorized transportation plan to designate locations for existing and planned bikeway, bike facility improvements and policies to accommodate the needs of cyclists and pedestrians.
Currently, the National ITS Architecture does not recognize any user service specific to non-motorized transportation and does not address individual technologies. In addition, most pedestrian and bicycle projects are locally deployed and are not generally addressed in a regional architecture. The 2011 update to the Regional ITS Architecture will make recommendations for updates to the sub-regional architectures.
Southern California Regional ITS Architecture 2011 Update
In the time between 2005, when the Southern California Regional ITS Architecture was developed, and in the 2011 update, there have been several changes. The National ITS Architecture has been updated to reflect new user services, Southern California has continued as a national leader in ITS deployment with extensive ITS investments, and new technology applications have emerged. The 2011 update to the Southern California Regional ITS Architecture reflects changes since 2005 and position the architecture to guide future ITS deployments as new technologies emerge. Topics covered in this 2011 update include express lanes, positive train control, technologies in support of non-motorized transport, and goods movement in addition to the updates for other cross-county services such as to address traveler information, regional data exchange and archiving of regional data.
To learn more about non-motorized services, view the information in the following update document:
Stakeholders are identified to accommodate data exchange between the non-motorized transportation ITS elements in the Southern California Regional ITS Architecture. Since most projects are locally implemented, the stakeholders are represented by local jurisdictions:
|Local Jurisdictions||Counties or local cities that are adjacent to county boundaries.|
ITS Elements are identified for the subregional ITS architectures to support non-motorized transportation information flows and data exchanges.
|Element Name||Stakeholder||Element Description||Element Status||Associated Entity|
|Arterial Roadside Equipment||Local jurisdictions||Arterial Roadside ITS Equipment such as traffic signal controllers.||Existing||Roadway Subsystem
|Arterial Traffic Control Systems||Local jurisdictions||Traffic signal systems operated by cities and counties in the region.||Existing||Traffic Management
Other Traffic Management
Non-motorized transportation users could be included in the subregional ITS architectures to support information flows and data exchanges with ITS elements for traffic management and surveillance. The services describe generic detection systems for identifying non-motorized users on the transportation network.
|Non- Motorized Vehicles||This project covers traffic management related efforts to provide support for non-motorized vehicles such as bicycles.||
MU-ATMS101-1 - Network Surveillance - Cycle and Pedestrian Systems
The Southern California Regional ITS Architecture provides recommended current, relevant standards for each information exchange between ITS projects for non-motorized transportation. Their use is not mandatory. However, in some instances, there may be funding requirements or regional policies that mandate project-specific standards.
|AASHTO/ITE/NEMA||NTCIP 1201||Global Object Definitions||Message/Data|
|NTCIP 1202||Object Definitions for Actuated Traffic Signal Controller (ASC) Units||Message/Data|
|NTCIP 1209||Data Element Definitions for Transportation Sensor Systems (TSS)||Message/Data|
|NTCIP 1210||Field Management Stations (FMS) - Part 1: Object Definitions for Signal System Masters||Message/Data|
|NTCIP 1211||Object Definitions for Signal Control and Prioritization (SCP)||Message/Data|
|NTCIP 1214||Object Definitions for Conflict Monitor Units (CMU)||Message/Data|
|View List||NTCIP Center-to-Field Standards Group||Group|