The edge/lane based noise output based on Harmonoise writes information about the noise produced on edges/lanes. The model was generated within the EC-project Imagine. Its description can be found in the deliverable
18 of this project (D18 The Harmonoise Engineering model).
Missing: Add a model description here
Note: Please be aware that adding up noise is not as easy as calculating other emissions or consumption values because the perceived sound of two cars is not the sum of the volumes of the individual cars since the decibel scale itself is logarithmic.
Attributes, for both Edge- and Lane-Based Noise Output
Attribute Name
Value Type
Description
id
id (string)
The id of the detector
file
filename
The path to the output file. The path may be relative.
freq
int (time)
The aggregation period the values the detector collects shall be summed up. If not given, the whole time range between begin and end is aggregated
begin
int (time)
The time to start writing (intervals starting before this time are discarded). If not given, the simulation's begin is used.
end
int (time)
The time to end writing (intervals starting at or after this time are discarded). If not given the simulation's end is used.
excludeEmpty
bool
If set, edges/lanes which were not use by a vehicle during this period will not be written; default: false.
Generated Output
Edge-Based Network States
Lane-Based Network States
Value Descriptions
Name
Type
Description
begin
(simulation) seconds
The first time step the values were collected in
end
(simulation) seconds
The last time step + DELTA_T in which the reported values were collected
edge@id
(edge) id
The name of the reported edge
lane@id
(lane) id
The name of the reported lane
sampledSeconds
s
Number seconds vehicles were measured on the edge/lane (may be subseconds if a vehicle enters/leaves the edge/lane)
noise
dBA
The average noise generated by the vehicles on the edge/lane during the interval
Notes
Notes:
Per default, all edges are written, even those on which no vehicle drove. It can be disabled setting the excludeEmpty attribute to true.
The interval end is the interval begin + aggregation time, meaning that values were collected within these steps excluding the end time itself. If the simulation ends before the last interval is over, the interval will be prunned.
The output file will be generated, does not have to exist earlier and will be overwritten if existing without any warning. The folder the output file shall be generated in must exist.
If you need only information about the network states during certain time periods, you may constraint generation of the dumps by giving attributes "begin="" and "end="[,]+"". When at least one combination is given, dumps will be written only if an according begin/end-pair exists for the current time. This means, only those intervals will be saved for which begin[x]<=INTERVAL_END and end[x]>=INTERVAL_BEGIN. All dumps will cover the complete simulation if no values for begin/end are given.