SUMO
Simulation of Urban MObility

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# Other/Glossary

## A

application
  An application is a computer program, herein, an "application" mostly means one of the main, compiled programs that are included in the SUMO package.
additional-file
  A file that can be included in a sumo configuration. This is needed to load pois, shapes, bus stops and variable speed signs. Call `sumo --help` for additional information.

## C

connection(s)-file
  An XML-file describing connections between edges or lanes, see connection descriptions for importing networks defined as XML

## D

DELPHI
  Deutschlandweite Echtzeit Verkehrs-Lage und Prognose im Ereignisfall
destination
  The position of the end of a vehicle journey. Mostly a TAZ processed by OD2TRIPs within which a "sink" edge lies
detector
  An artificial device for object (mainly vehicle) states recognition and/or logging
DFD
  Deutsches Fernerkundungsdatenzentrum des DLR
district
  see TAZ
DLR
  Deutsches Zentrum für Luft- und Raumfahrt
DUA
  Dynamic User Assignment
DUE
  Dynamic User Equilibrium

## E

edge
  A single-directed street connection between two points (junctions/nodes). An edge contains at least one lane
edge(s)-file
  A XML-file describing edges of a road network, see edge descriptions for importing networks defined as XML

## F

FCD
  Floating Car Data

## I

induction loop
  A detector placed on a certain position on a lane which recognizes vehicles passing it and logs their attributes (speed, size, etc.)

## J

junction
  The place an edge begins or ends at (same as node)
junction logic
  The part of a junction which determines the vehicle behaviour at the according junction by using certain right-of-way - rules

## L

link
  A connection between two lanes within a junction. Within microsim, each lane has links (connections) to the following lanes. A link contains the information whether the vehicle has to decelerate in front of the junction.

## M

macroscopic
  In a macroscopic traffic (flow) simulation, the atomic instances are roads; the flow is simulated directly (see microscopic)
mesoscopic
  In a mesoscopic traffic (flow) simulation, the streets are partitioned into sections which multiple vehicles may enter and leave at each simulation step
microscopic
  In a microscopic traffic (flow) simulation, the atomic instances are vehicles; the flow is simulated by simulating the vehicles (see macroscopic)
multimodal
  A multimodal traffic simulation is capable of processing different types of traffic (busses, trains, vehicles etc.)

## N

(street) network
  In our terms, a network is the combination of junctions (nodes) and edges (streets)
node
  A node (junction) is a single point were at least one edge (road) starts or ends
node(s)-file
  A XML-file describing nodes of a road network, see node descriptions for importing networks defined as XML

## O

O/D-matrix (od-matrix)
  Origin/Destination-matrix; describes how many vehicles are moving from each origin to each destination within a certain time period
option
  A parameter for the application which determines what or how an application shall do
origin
  The position of the begin of a vehicle journey. Mostly a TAZ processed by OD2TRIPs within which a "source" edge lies

## P

poi
  short for "point of interest"; A position of an object that may be interesting

## R

route
  A route is a complete description of a vehicle's path over the network; it contains the information when the vehicle departs (the route starts) and over which edges the vehicle shall drive

## S

script
  A small computer program which normally doees not have to be compiled. The SUMO package includes several scripts, most written in Python
source
  A source means a place at which vehicles are inserted into the street network
source-tar-ball
  A file containing the sources (program code) for a project. The source code must be compiled in order to get the runnable application. It is called "tar-ball" because of using the application "tar" to join all the source files into a single file.
submicroscopic
  In a submicroscopic traffic (flow) simulation, the atomic instances are parts of the vehicle or the driver (gearing or behavior is modelled)

## T

TAZ
  Traffic Assignment Zone, a collection of edges describing a part of a road network's area (also called 'district')
TLS
  traffic lights system
trip
  A reduced information about a vehicle's movement; contains only the departure time, the begin, and the end edge. Must be transformed into a route using a router for being used within the simulation
trip-table (trip list)
  A file containing several trips
TS
  Institute of Transportation Systems at the German Aerospace Center (DLR)
TS-BS
  TS Standort Braunschweig
TS-BA
  TS Standort Berlin-Adlershof
type(s)-file
  A XML-file describing types of streets, see type descriptions for importing networks defined as XML

## X

XML
  "eXtensible Markup Language is a universal format for structured documents and data" as the w3c says. Further information may be found at http://www.w3c.org/XML/ or http://en.wikipedia.org/wiki/XML. Most of the data read and written by SUMO is stored as XML, see also the page on file types.
XSD
  XML Schema Definitions "... provide a means for defining the structure, content and semantics of XML documents" as the w3c says. Further information may be found at http://www.w3.org/XML/Schema or http://en.wikipedia.org/wiki/XML_Schema_%28W3C%29. A part of the XML data formats used by SUMO is covered by xsd, see the page on file types.

## Z

This page was last modified on 23 November 2011, at 15:27.