Communication overload: It is necessary to evaluate the
impact of the adoption of CARTIM relative to traffic congestion
messages. Table V shows the total number of messages
sent and relayed by vehicles. These messages have a payload
of 256 bytes (2048 bits) in CARTIM. In scenarios 3, 4 and
5 a total of 5047, 4990 and 5286 messages were disseminated
during the simulations, respectively. This corresponds,
respectively, to average rates of 8.4, 8.3 and 8.8 messages
per second. However, since the network has a transfer rate
of 6 Mbit=s (6 106 bits/second), the amount of messages
sent in the simulated scenarios was not sufficient to cause
network overloads. In these circumstances, the network would
support the transmission of almost 3000 congestion messages
per second.