NYC Public ConOps Webinar - Stakeholder Questions/Answers
April 1, 2016
SAE J2945/1 states requirements for GPS accuracy needed for the DSRC vehicle system and will be referenced in our requirements. We will be investigating additional techniques to augment location information as we move ahead.
DSRC be used for V2I communication. The arterials described in the ConOps will be equipped with DSRC Road Side Equipment (RSE) to provide a communication link between Onboard Units (OBU) or SmartPhones and the infrastructure. Additional locations near fleet terminal facilities, river crossings, and airports will also be equipped with RSE for the collection of performance data and application management.
No. The only other medium used in the project is the existing NYCWiN wireless infrastructure for the backhaul communications between the RSE and the back office systems to support the CV operation including data collection, performance analysis, security management, CV operations management, and data processing for export.
BSM Part II will be supported per SAE J2945/1 for light duty vehicles.
The NYC connected vehicle pilot project has partnered with the University Transportation Research Center that represents experts including those at Polytechnic Institute of New York University and other local universities.
Yes. Equipment and network monitoring responsibilities will be incorporated into the TMC operations; in addition, the TMC will manage the performance data collection, and data processing to anonymize and export the data for research purposes.
The speed limit reduction was implemented in November of 2014. The signal retiming activities began prior to the implementation and continue.
It should be noted that UPS is not a government fleet and taxis which make up the bulk of the fleet participants are privately owned by a collection of different companies. The City is installing a standards based infrastructure that will support use of the DSRC by additional fleets and privately owned vehicles that adhere to the Connected Vehicle messaging and communications standards.
Yes. Additional information will be available in the final Security Management Operational Concept plan to be published later this year.
The Connected Vehicle Reference Implementation Architecture web site has information about RSU monitoring in the documentation for the Infrastructure Management application under the core services. In addition we are adding online RF monitoring of the RSU.
The DSRC radio signals are available for all receivers. The transmitting vehicle’s identity is obfuscated by algorithms detailed in SAE J2945/1. The security credentials will be distributed through the next generation of the Security Credential Management System. Note that the data is encrypted as it is stored in the vehicle such that its privacy is preserved over all links including the DSRC.
These will be recorded to develop radio range “foot print” for the devices. By using only the first and last, we can significantly reduce the bandwidth requirements for the backhaul infrastructure and the processing at the TMC.
Our concept is based on preliminary site tests to identify existing sources and using the radio frequency ranging described above to manage operations.
New York City has an adaptive traffic system already deployed in mid-town Manhattan called Mid-town-In-Motion. This project will look at substituting speed data from the connected vehicles for the existing speed data gathered through existing systems.
