Re: [sumo-user] generate passenger cars and busses and the use of DUAROU

["Barto, Martin" <Martin.Barto@xxxxxxxxx>]

Thank you for your clear answers. I’ve got the first to issues working. Working on the third.

 

Met vriendelijke groet,

Martin Barto
Sr. Verkeerskundige
Mobiliteit

          

Vialis is een Koninklijke VolkerWessels onderneming.

Postbus 184, 3990 DD Houten | tel. +31648510557 mob. +31648510557 

.
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Van: sumo-user-bounces@xxxxxxxxxxx <sumo-user-bounces@xxxxxxxxxxx> Namens Jakob Erdmann
Verzonden: vrijdag 14 september 2018 19:39
Aan: Sumo project User discussions <sumo-user@xxxxxxxxxxx>
Onderwerp: Re: [sumo-user] generate passenger cars and busses and the use of DUAROUTER

 

1) You can add the duarouter option --unsorted-input

The downside of this is that the input is read completely into memory before writing output (By default processing is stream-based to conserve memory).

 

Alternatively, you can just put the input in separate files and call duarouter twice. I find that if often helps to keep different types of traffic in separate route files.

 

2) As soon as a vehicle gets the 'line' attribute it is recognized as public transport. By default, duarouter does not route public transport data.

You can change this behavior by adding the option --ptline-routing

 

3)

a) All detectors allow retrieving the ids of detected vehicles. You would then have to retrieve the line attribute for each of the vehicles to check whether one of them is a bus

b) you could add a context subscription to the traffic light junction to continually retrieve the id and line attribute for all vehicles in a radius

c) continually monitoring the buses isn't a bad idea either

 

The advantage of a) might be the ability to model the limited information stream often found in the real world. b) and c) are probably more convenient. Supposedly c) is more efficient if you have only a few buses and lots of background traffic.

 

regards,

Jakob

 

2018-09-14 13:52 GMT+02:00 Barto, Martin <Martin.Barto@xxxxxxxxx>:

Dear SUMO users,

 

I have some questions about vehicles and the use of DUAROUTER:

 

1.

I try to generate passenger cars on the base of measured flow counts (in aggregation periods of a quarter during the day) and besides that I try to generate individual busses on particular time stamps. The input route file I made looks something like this:

 

<routes>

<vType accel="1.9" color="yellow" decel="4.5" guiShape="passenger" id="passengerCar" length="4.5" maxSpeed="36" sigma="0.7"/>

<vType accel="0.8" color="red" decel="3.5" guiShape="bus" id="bus" length="12" maxSpeed="25" sigma="0.7" width="2.5"/>

 

<route edges="3_i_1 3_i_0 4_e_0 4_e_1" id="12"/>

 

<vehicle depart="403" id="0" route="12" type="bus"/>

<vehicle depart="2174" id="1" route="12" type="bus"/>

 

<flow begin="0" end="900" from="3_i_1" id="2" number="20" to="4_e_1" type="passengerCar"/>

<flow begin="900" end="1800" from="3_i_1" id="3" number="13" to="4_e_1" type="passengerCar"/>

<flow begin="1800" end="2700" from="3_i_1" id="4" number="15" to="4_e_1" type="passengerCar"/>

<flow begin="2700" end="3600" from="3_i_1" id="5" number="18" to="4_e_1" type="passengerCar"/>

</routes>

 

If I run DUAROUTER, this leads to a route file with vehicle tags. But first all the busses are generated with the right time stamps and after that the passenger cars are generated. The output looks like this:

 

<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://sumo.dlr.de/xsd/routes_file.xsd">

    <vType id="bus" length="12.00" maxSpeed="25.00" guiShape="bus" width="2.50" color="red" decel="3.5" sigma="0.7"/>

    <vehicle id="0" type="bus" depart="403.00">

        <route edges="3_i_1 3_i_0 4_e_0 4_e_1"/>

    </vehicle>

    <vehicle id="1" type="bus" depart="2174.00">

        <route edges="2_i_1 2_i_0 3_e_0"/>

    </vehicle>

    <vType id="passengerCar" length="4.50" maxSpeed="36.00" guiShape="passenger" color="yellow" accel="1.9" decel="4.5" sigma="0.7"/>

    <vehicle id="269.0" type="passengerCar" depart="0.00">

        <route edges="3_i_1 3_i_0 4_e_0 4_e_1"/>

    </vehicle>

…

</routes>

 

Is it possible to automatically generate all vehicles in the right order of depart times with DUAROUTER?

 

2.

I want to give the generated busses additional information, like the line number, by adding attributes to the vehicle tag. For instance:

 

<vehicle depart="403" id="0" route="12" type="bus" line="56"/>

 

When I run DUAROUTER the vehicles containing the attribute “line” don’t show up in the output file. What am I doing wrong here?

 

3.

My goal is to give priority to busses in the traffic light program during the simulation. There are two possible ways in doing so:

1. The bus passes a detector. The information about the line number is passed to the control application when passing
2. The vehicle information (location, speed, heading, line number) is passed continuously to the control application

I’d like to know for both ways what the best solution is in doing so. Which detector type should I use, how do I call the information from the vehicle, etc.

 

Can anybody give me guidance and advice? Thank you in advance.

 

Best regards,

Martin Barto
Sr. Verkeerskundige
Mobiliteit

          

Vialis is een Koninklijke VolkerWessels onderneming.

Postbus 184, 3990 DD Houten | tel. +31648510557 mob. +31648510557 

.
.

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