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U. Glaeser

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FIGURE 38.30<br />

FIGURE 38.31<br />

a kind of the interaction effects between provisions of traffic information and vehicles or drivers, that<br />

is, it simulates the differences of traffic flow rate with and without traffic information with a message<br />

board to drivers. For example, a roadside message board in the circle in Fig. 38.31 says that there is an<br />

icy road surface ahead, so please slow down. This message is also sent through road to vehicle communication<br />

to vehicle and shown in the in-vehicle display like in-vehicle navigation system in Fig. 38.31. Now<br />

a smart driver follows this advice to get smooth traffic flow. Some driver might not follow. As a result<br />

of this, congestion would occur to cause bad traffic flow. Therefore, traffic flow rates between these two<br />

cases are very different. ITS simulator can simulate such a situation and show the effectiveness of the<br />

provisions of traffic information.<br />

© 2002 by CRC Press LLC<br />

Generation of congestion due to accident.<br />

In-vehicle display<br />

Variable Message Board<br />

Simulation of effectiveness of AHS-i.<br />

� �������� �������<br />

• Provision of road condition with Variable<br />

Message Board<br />

•Road surface is slippery.<br />

Other vehicles generated by<br />

MELROSE

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