Hi,
have you tried out defining your public transport line as a flow element
(see https://sumo.dlr.de/docs/Simulation/Public_Transport.html#flows)?
Then you should be able to specify a frequency and reference the route
and stops only once.
Regards
Mirko
Am 04.05.2020 um 17:33 schrieb Tripplanner Mumbai:
Hello,
I am confused about the implementation of public transport route
inside SUMO.
As per standards, a public transport route (sometimes known as a line)
has a fixed sequence of stops which it has to cover, and a frequency
which means the number of times that route must be served at these stops.
In SUMO, we have a <route> tag, but I think it is used for deciding a
path not a public transport route (or line). On the other hand, a
route is modelled through <vehicle> tag using an attribute "line".
Well, such modelling is discouraging as each time we have to repeat
the sequence of stops and related edges, as given below of two
instances repeating the same information unnecessarily.
Instance 1:
<vehicle id="bus_14.0" type="bus" depart="0.00" departLane="best"
line="14">
<route edges="78[0] 56a 56b 77bc 77cd 53cd 53[0] 78[1][1] 189[0]
189[1][0]+20000 189[1][1] 188 87[0] 20001+87[1][0] 87[1][1] m90 89[0]
20002+89[1][0] 89[1][1] 91 186 109[0] 109[1][0]+20003 109[1][1] 116 46
134 134b"/>
<stop busStop="busStop#31" until="0.00"/>
<stop busStop="busStop#32" until="120.00"/>
<stop busStop="busStop#33" until="240.00"/>
<stop busStop="busStop#34" until="360.00"/>
<stop busStop="busStop#21" until="480.00"/>
</vehicle>
Instance 2:
<vehicle id="bus_14.1" type="bus" depart="240.00" departLane="best"
line="14">
<route edges="78[0] 56a 56b 77bc 77cd 53cd 53[0] 78[1][1] 189[0]
189[1][0]+20000 189[1][1] 188 87[0] 20001+87[1][0] 87[1][1] m90 89[0]
20002+89[1][0] 89[1][1] 91 186 109[0] 109[1][0]+20003 109[1][1] 116 46
134 134b"/>
<stop busStop="busStop#31" until="240.00"/>
<stop busStop="busStop#32" until="360.00"/>
<stop busStop="busStop#33" until="480.00"/>
<stop busStop="busStop#34" until="600.00"/>
<stop busStop="busStop#21" until="720.00"/>
</vehicle>
Furthermore, I would like to know about implementing frequency
assignment to a public transport route (or line). Could anyone clarify
my doubts or redirect me to a correct thread.
thanks and regards,
Dillip Rout
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