修复omnet ++和sumo中的速度

Question

I have question. If I have road with three lane each lane has own speed like ( 80 , 100 , 120 )Km/h ... Then need to test the performance of any protocol like the AODV for VANET when the vehicle speed is 90 Km/h.. and the number of vehicle is 100 how can do this,mean to set fix speed for these cars. Thanks in advance.

Answer 1

To fix the speed of a vehicle you can simply give it the aspired speed as maximum speed and prevent it from dawdling (which it does with the default model). An input route file could look like this:

<routes>
    <vType sigma="0" id="t1" maxSpeed="90"/>
    <vehicle id="v1" type="t1" depart="0" route="r1" departSpeed="max"/>
</routes>

Please note that this will set the maximum speed to 90m/s (as requested in the question) which means 324 km/h. Also the definition of the route r1 is excluded here.

If you have multiple interacting vehicles however you cannot at the same time guarantee collision free simulation and constant speed and sumo will favor the first.