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  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.