===== Speed =====

The speed of [[en:traffic:timetable:motion:start|vehicle motions]] can be controlled in traffic in different places:

  * global in the [[en:traffic:config:start|Traffic-config]]
  * global at [[en:traffic:timetable:start|timetable]]
  * individually in the vehicle movement
  * individually on the vehicle itself

Traffic knows three speed indications:

   * the maximum speed of a [[en:traffic:timetable:motion:consist:start|vehicle composition]]
   * The approach speed of a vehicle composition, ie the speed with which the compilation sets in motion
   * the speed of a compilation when coupling to another

==== Global Settings ====

Traffic offers the possibility to adjust the overall speed at once. However, this does not set all movements at the same speed, but acts as a multiplier for the individual speeds, so that the speed ratios of the movements to each other are maintained.

On the one hand, for each [[en:traffic:modes:start|modes]] the global speed can be entered separately in the traffic configuration window, which is valid for all timetables. The default value after installing Traffic is 45.

On the other hand, a global speed can be specified in the timetable, which overwrites the one in the configuration window. This is usually indicated by //$SPEED// in the header of a timetable. An equal sign is used as with all global timetable information __not__.

<code>$SPEED 32</code>

In the timetable, the approach speed (//$IV//, //$INITIAL_SPEED//, //$STARTSPEED//) and the dome speed (//$CV //, //$COPSPEED//, //$COUPLE_SPEED//). Here, however, an individual indication in the vehicle movement is usually more useful.

==== In the vehicle movement ====

In the vehicle movement the speed indication is indicated by //V=//.

<code>V=10</code>

Certain [[en:traffic:timetable:motion:motiontypes:start|motiontypes]] that contain multiple train parts can also specify multiple speeds. These are then marked in chronological order as //V1// etc.

In vehicle movements, the approach speed can also be specified with //IV=//, //INITIALSPEED=// (note the missing underscore) or //STARTSPEED=// and the dome speed with //CV=//, //COPSPEED=// or //COUPLE_SPEED//.

==== On the vehicle ====

The speed can also be specified on the vehicle itself as [[en:traffic:modifications|modification]], both in a [[en:traffic:timetable:makro| timetable macro]] and in the [[en:traffic:timetable:motion:consist:start|Vehicle sequence of the movement]] as well as in the [[en:traffic:vehiclelist:start|vehiclelist]]. In all cases, it is appended to the name of a macro or image using //[#V:]//.

<code>[#V:10]</code>

If there are several corresponding entries in a compilation, each entry overwrites the previous one, so that the last one always applies.

Starting and coupling speeds can not be specified on the vehicle.

==== Hierarchy ====

If both details are present in a vehicle movement, ie one or more vehicles with speed modification as well as a speed indication in the movement itself, __the indication in the movement is__, i. H. the modifications are overridden, regardless of which value is higher or lower.