Roadway
Segment
2010 Base Model AADT
Existing 2017 AADT
Annual Growth Rate 2017 to 2040
2010 Count
Ratio (Count/Ab)
Difference (Count-Ab)
Model Ratio (Af-D)/Ab
2040 Model AADT
Selected Adjustment
RATIIO
DIFF
MRATIO ((MR- 1)*DIFF+RATIO)/MR
Ab
Count 5,700 5,700 5,700
R
D
MR 2.36 2.22 2.44
Af
(Count/Ab) * Af (Count- Ab)+Af
Bruce B. Downs to North 22nd Street North 22nd Street to North 15th Street North 15th Street to Nebraska Avenue
12,000 15,000 12,000
0.48 0.38 0.48
-6,300 -9,300 -6,300
22,000 MRATIO 10,500 24,000 MRATIO 9,100 23,000 MRATIO 10,900
15,700 14,700 16,700
13,000 12,000 14,000
7,800 7,800 7,800
2.90% 2.34% 3.46%
East 131st Avenue
Note: AADT volumes are rounded according to the AASHTO rounding standards 2010 Count data was obtained from 2011 AADT reduced by 0.35% growth rate NCHRP 255 Smoothing Method If MR>1.0 then If RATIO ≤ 0.5 then use MRATIO
Roadway
Segment
2010 Base Model AADT
2010 Count 2017 Existing AADT
2040 TBRPM AADT
Adjusted 2040 Model Volumes
Annual Average Growth Rate 2017 to 2040
Bruce B. Downs to North 22nd Street North 22nd Street to North 15th Street North 15th Street to Nebraska Avenue
12,000 15,000 12,000
5700 5700 5700
7,800 7,800 7,800
22,000 24,000 23,000
13,000 12,000 14,000
2.90% 2.34% 3.46%
East 131st Avenue
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