This option opens the Point Calculation dialog of PEN3D. Selecting the option permits immediate calculation of noise levels at selected points.
The Point Dialog - Receptor tab:
Select all calculation points |
When unchecked enable the list box to permit individual receptors to be selected and de-selected |
List box
|
individual receptors are selected (checked) and de-selected |
Print Value |
Print the elevation on the screen |
Print on Background |
Prints the elevation on a light background for additional clarity |
The Point Dialog - CoRTN tab:
Select all road segments |
When unchecked enables the list box to permit individual road segments to be selected and de-selected |
List box
|
Individual roads are selected (checked) and de-selected |
L10(18 hour) |
Do the 18 hour calculation |
L10(1 hour)0(1 hour) |
Do the 1 hour calculation |
Road segment angle |
Splits each road link into segments of this angle as determined from the receptor |
The Point Dialog - Environmental tab:
Select all road segments |
When unchecked enables the list box to permit individual noise sources segments to be selected and de-selected |
List box
|
Individual Sources are selected (checked) and de-selected |
Add decibel |
Add the noise levels from the sources |
Envelope |
Retain the maximum noise level |
A-weighted |
Results in terms of the A-weighted noise level |
Linear |
Results unweighted |
Line source angle |
Splits each line source link into segments of this angle as determined from the receptor |
The Point Dialog - Railway tab:
Select all road segments |
When unchecked enables the list box to permit individual rail sources segments to be selected and de-selected |
List box
|
Individual Sources are selected (checked) and de-selected |
Lmax |
Calculate the maximum noise level from trains passing |
Leq(1 hour) |
Results in terms of the A-weighted noise level Leq(1 hour) |
Railway segment angle |
Splits each railway source link into segments of this angle as determined from the receptor |
The Point Dialog - Meteorology tab - Environmental/Railway Model Only:
Meteorological data file |
Carry out calculations using an Ausplume meteorological file. The "Select Temperature Gradient Ranges" is used to convert the Pasquil stability classes in the Ausplume file to vertical temperature gradient as required by this program. Results post-processed in the Output options Tab. |
|
Open and select the meteorological file |
Mast Height |
Height of the anemometer used in the Ausplume data file |
Specific meteorology |
Evaluate the noise level for the specified meteorology below |
Temperature Temperature Gradient Humidity Wind speed Mast Height Wind direction |
The name says it all |
The Point Dialog - Ground Options tab - Environmental/Railway Model Only:
Roughness length |
various default setting for the entire map |
Zero Plane displacement in tree zones
|
Increases the height of the zero wind velocity in tree zones. This is close to the ground in most area, however dense trees offers some protection and in some cases there is no wind within tree zones |
Mast Height |
Height of the anemometer used in the Ausplume data file |
Ground effects model |
Incoherent reflection supported. |
The Point Dialog - Output Options tab:
Print source data |
Print information about the source data to the output screen |
Overall noise level
|
Default output is the overall noise level |
Noise level per source |
Summary of the noise level from each noise source (by name) |
Noise level per slice |
Additional details from each source |
Attenuations |
Excess attenuation factors (forces noise level per slice option) |
Octave band |
In the environmental model will give the octave band noise levels. in dB(A) |
dB |
In the environmental model will give the octave band noise levels. in dB |
Maximum 100 Noisiest Statistical Distribution - al hours Statistical Distribution - diurnal All results Average per month Average diurnal Maximum and minimum per month Maximum and minimum diurnal Statistical distribution - periods |
Used in conjunction with the Meteorological file will print the results indicated
The statistical distribution periods relates to the three period specified in the Time periods tab. |
The Point Dialog - Time periods tab:
Check Boxes |
There are a series of check boxes to include the hour indicated into the period indicated. |