LARGE-SCALE PARALLEL GRAPH-BASED SIMULATIONS - MATSim

p e r s o n i d =”6357250”
-
p l a n -
a c t t y p e =”h” x100=”387345” y100=”276590” l i n k =”14584” /
-
l e g mode=” car ” d e p t i m e = ”06:54:35” t r a v t i m e = ”00:30”
-
r o u t e 4 9 0 2 4 9 0 3 4 9 0 4 4 9 0 5 4 9 0 6 4 9 0 7 4 9 0 8 4 9 0 9 - / r o u t e
-
/ l e g -
a c t t y p e =”w” x100=”387345” y100=”276590”
-
l i n k =”14606” dur=”08:00” /
/ p l a n -
- / p e r s o n
Figure 2.9: An example for the plans data in the XML format
reading any vehicle information.
An example of a person’s plan is given in Figure 2.9. Each person has a unique ID and a
plan. A plan is composed of a set of activities. Each activity defines a location, the coordinates
of the location and a link ID, on which the activity will start. Each pair of consecutive activities
describes a leg of the plan. The leg provides information about the means of transportation,
the earliest time that a vehicle can start its execution, the expected travel time from the start
activity location to the end activity location of the leg, and a set of node IDs that defines a route
that is supposed to be followed when moving from the start activity location to the end activity
location.
The traffic flow simulation creates a new agent/vehicle for each leg defined in a person’s
plan. In case a person has more than one leg, the simulation makes sure that the highernumbered
legs wait for the completion of the execution of the previous legs.
2.2.5 Events as Output of Queue Simulation
Since the queue simulation does not aggregate data (Chapter 5.2.1), it only produces events as
the output for the other modules in the system, which are better able to check the correctness
of their own data aggregation. An event is produced whenever a vehicle moves from one queue
to another or leaves the simulation due to various reasons. Possible events are of the following
types (not limited to those listed here):
departure: moving from the parking queue of a link to the waiting queue of the same
link, since the start time has arrived.
leaving a waiting queue: moving from the waiting queue of a link to its spatial queue to
start simulating.
leaving a link: leaving the current link.
entering a link: entering the next link (vehicle leaves the current link just before this
event happens).
being stuck and leaving the simulation: getting stuck in congestion for a specific time
period and leaving the simulation afterwards.
arrival: arrival at the final destination.
A set of events of a vehicle in the XML (Section 3.4.1) format is shown in Figure 2.10.
The example shows the events created while the plan of vehicle 6465 is executed. The vehicle
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