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Feat/noise prediction #532

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Feat/noise prediction #532

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5d5e6b2
Added updated noise prediction method
Jul 4, 2023
c5df000
Sanity check log messages for noise calc
Jul 4, 2023
880488a
Fixed log10 zero insertion
Jul 4, 2023
c0a3c6d
Fixed logic error with noise calculation
Aug 17, 2023
0c4817f
Merge branch 'olusanya' into feat/noise-prediction
s-hiitola Aug 17, 2023
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29 changes: 19 additions & 10 deletions Scripts/assignment/emme_assignment.py
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Original file line number Diff line number Diff line change
Expand Up @@ -425,18 +425,27 @@ def calc_noise(self):
speed = (0.3*(60*link.length/link["@car_time_aht"])
+ 0.7*link.data2)
speed = max(speed, 50.0)

# Calculate start noise
if speed <= 90:
heavy_correction = (10*log10((1-heavy_share)
+ 500*heavy_share/speed))
log.info("NEW FORMULA FOR NOISE CALC")
if speed >= 50:
LAE_light = 73.5 + 25*log10(speed/50)
LAE_heavy = 80.5 + 30*log10(speed/50)
elif speed >= 40:
LAE_light = 73.5 + 25*log10(speed/50)
LAE_heavy = 80.5
elif speed < 40:
LAE_light = 71.1
LAE_heavy = 80.5
if cross_traffic > 0:
LAeq_light = LAE_light + 10*log10(cross_traffic/15/3600)
LAeq_heavy = LAE_heavy + 10*log10(heavy_share*cross_traffic/15/3600) if heavy_share > 0 else 0
start_noise = 10*log10(10**(LAeq_light/10)+10**(LAeq_heavy/10)) if LAeq_heavy > 0 else LAeq_light
else:
heavy_correction = (10*log10((1-heavy_share)
+ 5.6*heavy_share*(90/speed)**3))
start_noise = ((68 + 30*log10(speed/50)
+ 10*log10(cross_traffic/15/1000)
+ heavy_correction)
if cross_traffic > 0 else 0)
start_noise = 0
log.info(start_noise)



# Calculate noise zone width
func = param.noise_zone_width
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