CONNECTED SIGNALS |
knowledge and, importantly, without
huge financial investment, it would
be possible to better regulate
existing traffic signals taking
advantage of the alreadydeveloped
076 Intertraffic World | Annual Showcase 2020
wireless
phone internet data
infrastructures.
The experiment
showed that a better use
of FCD (Floating Car Data)
is possible and that realtime
control of traffic
30% The proportion of drivers
who need to use floating car
data adaptive traffic
signals (FCDATS) for
the benefits to be seen
signals can be performed
with existing technologies in
an economically sustainable
way. The infrastructure costs of
using FCD for traffic signal regulation
are, in fact, extremely low compared to
traditional adaptive traffic signal systems.
As mentioned, the results based on
simulation have shown that when
more than 30% of vehicles are
‘connected’, the benefits are for
everyone, while when the
figure is below 30%, the
‘traditional’ vehicles not
participating would receive
little delays with respect to
the time savings of
connected vehicles. In other
words, no matter what the
penetration rate, the system
simulations showed that with
the implementation of FCD
adaptive traffic signals (FCDATS)
the whole traffic flows better, with
by all road users
reduced travel times, fewer pollution
emissions and lower fuel consumption.
The first experiment conducted at UNICAL
has shown a way to demonstrate that these
simulation results can be reproduced under real
conditions. The proposed experimental
prototype system and experimental setting
demonstrates the feasibility and convenience of
such systems and paves the way for real FCDATS
in our future smart cities. ■
Above and below:
Data passes around
the network in real
time to measure the
speed and distance
of the connected
vehicles and adjust
the traffic lights
as necessary
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