The table below shows the average DSRC message rate measured at RSU over 10 seconds in messages per second or Hz, by intersection, type (e.g., MAP, SPaT, BSM, etc.), and transmitting direction (e.g., outbound from RSU to OBU, and inbound from OBU to RSU). An RSU may receive (inbound) MAP and SPaT from nearby RSUs. Message set definition is SAE J2735 version 2016-03. Please see the standardized message rate in the Frequently Asked Questions section.
This table is refreshed every second and message rates measured at RSUs are updated every 10 seconds. The font of Outbound Rate changes to red if the measured rate at the intersection differs from the standardized rate (e.g., 1Hz for MAP and 10Hz for SPaT). The last column gives the elapsed time in seconds since the last update was received from the corresponding intersection. The font changes to red if no updates for more than 60 seconds (one minute). Note that the 'Last Update' value is affected by the quality of the backhaul connections.