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Boulder County, CO
City of BoulderCity of Longmont 
BOULDER COUNTY
! !! ! !! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! !! !!! ! ! ! ! ! ! ! ! !!! ! ! ! ! !! ! ! ! ! !! !! !! ! ! !! ! !! ! !!!! ! ! ! ! !!! !!!! !!!! !!!!! !!!!! ! !! !! ! !!!! !!! !! !! !!!!! ! !!!!!! !!!!!!! ! !!!!!!! ! ! ! !! ! ! ! !! !!!! ! !!!!!!!! ! !! ! ! ! ! !!!!! !! ! ! !! !!! ! !!! !!!!! ! ! !! ! ! ! ! !!! !! ! !!! !!!! ! !! ! ! ! !!! !! ! !! !! !!!!! ! !! !! !!!! !! !! !! !! !! ! ! !!!! ! ! !!!!!! !!!! !!!! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! !! ! ! !!! ! ! ! ! !! ! !! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! !! ! ! ! ! ! ! !! ! !!! ! ! ! ! ! ! 
Boulder County Traffic Stations
Typical Boulder County RoadsGravel RoadsRoads w/out shouldersRoads with shoulders
Typical Traffic Station
NumHtYYYY-MM-DDhh:mm:ssDrSpeedWheelbaseHdwyGapAxGpRhoClNmVehicle00000002f47/18/201214:01:18BA45.35.240.740.6211110MCoo06547/18/201214:06:43AB223.40.60.5211110MCoo00000010c47/18/201214:32:40BA44.84.946.545.8211110MCoo018847/18/201214:56:49BA44.44.6123.8123.7211110MCoo0000001eb47/18/201215:05:47AB20.23.36.66.5211110MCoo0000002d647/18/201215:29:55BA27.63.835.735.7211120MCoo00000038a47/18/201215:50:59BA48.14.8101.9101.2211110MCoo0000003ca47/18/201215:58:29AB23.33.37.27.122110000001cMCoo048247/18/201216:17:02AB62.45.380.780.6211110MCoo0000004ca47/18/201216:23:00BA48.65.210.110211110MCoo00000054c47/18/201216:32:05AB56.85.17.16.9211120MCoo00000061b47/18/201216:46:12AB51.25.22.42.2211110MCoo00000068f47/18/201216:53:32BA534.29.29.1211110MCoo0000006c947/18/201216:59:43AB233.498.8211110MCoo074347/18/201217:09:28BA41.54.61.61.5211110MCoo00000074b47/18/201217:10:51AB525.466.966.8211110MCoo078747/18/201217:16:38BA47.54.479.179211110MCoo0000007b147/18/201217:19:12BA44.34.859.159211110MCoo0000007bd47/18/201217:20:00AB55.25.31.81.7211110MCoo0000007d547/18/201217:22:22AB55.25.343.9211110MCoo00000088a47/18/201217:32:09AB53.64.94.54.4211120MCoo00000088e47/18/201217:32:11BA43.74.5278.6278.4211110MCoo0000008aa47/18/201217:34:37AB18.23.347.947.8211110MCoo099447/18/201217:46:20AB60.75.4109.9211110MCoo099847/
YYYY-MM-DD hh:mm:ss Dr Speed Wheelbase Hdwy Gap Ax Gp 4 7/18/2012 14:01:18 BA 45.3 5.2 40.7 40.6 2 1 4 7/18/2012 14:06:43 AB 22 3.4 0.6 0.5 2 1 4 7/18/2012 14:32:40 BA 44.8 4.9 46.5 45.8 2 1 4 7/18/2012 14:56:49 BA 27.6 3.8 35.7 35.7 2 1 4 7/18/2012 15:50:59 BA 48.1 4.8 101.9 101.2 2 1 4 7/18/2012 15:58:29 AB 41.5 4.6 1.6 1.5 2 1 4 7/18/2012 17:10:51 AB 44.3 4.8 59.1 59 2 1 18.2 3.3 47.9 47.8 2 1 4 7/18/2012 17:46:20 AB 60.7 5.4 10 9.9 2 1 44.4 4.6 123.8 123.7 2 1 4 7/18/2012 15:05:47 AB 20.2 3.3 6.6 6.5 2 1 4 7/18/2012 15:29:55 BA 23.3 3.3 7.2 7.1 2 2 4 7/18/2012 16:17:02 AB 62.4 5.3 80.7 80.6 2 1 4 7/18/2012 16:23:00 BA 48.6 5.2 10.1 10 2 1 4 7/18/2012 16:32:05 AB 56.8 5.1 7.1 6.9 2 1 4 7/18/2012 16:46:12 AB 51.2 5.2 2.4 2.2 2 1 4 7/18/2012 16:53:32 BA 53 4.2 9.2 9.1 2 1 4 7/18/2012 16:59:43 AB 23 3.4 9 8.8 2 1 4 7/18/2012 17:09:28 BA 52 5.4 66.9 66.8 2 1 4 7/18/2012 17:16:38 BA 47.5 4.4 79.1 79 2 1 4 7/18/2012 17:19:12 BA 4 7/18/2012 17:20:00 AB 55.2 5.3 1.8 1.7 2 1 4 7/18/2012 17:22:22 AB 55.2 5.3 4 3.9 2 1 4 7/18/2012 17:32:09 AB 53.6 4.9 4.5 4.4 2 1 4 7/18/2012 17:32:11 BA 43.7 4.5 278.6 278.4 2 1 4 7/18/2012 17:34:37 AB
012345601020304050607080 Vehicle Wheelbase (ft) Vehicle Speed (mph) Speed vs. Wheelbase -Motorcycle Class 
4-6’ 
3-4’
Selected for “Beta Test”
beta Test- 
Attachment Methods and Counters Studied 
MetroCount: 
clear vinyl sleeve 
Eco-Counter: 
metal bracket
Station Set-Ups 
Roads without Shoulders Roads with Shoulders 
4 ft 
4 ft 33 ft 
27 ft 
Three Distance Groups: 
• 4’ Group 
• 27’ Group 
• 33’ Group
Riding in Laps to Increase Quantity of Data
Riding in Laps to Increase Quantity of Data
ClassNameDescriptionNumberPercent of TotalClass1CYCLEBicycle14433.33% Class2MCMotorcycle40.93% Class3SVCar19845.83% Class4SVTCar+Trailer20.46% Class5TB22 Axle Rigid Body Truck327.41% Class6TB33 Axle Rigid Body Truck00.00% Class7T44 Axle Rigid Body Truck368.33% Class8ART33 Axle Articulated Truck61.39% Class9ART44 Axle Articulated Truck102.31% Class10ART55 Axle Articulated Truck00.00% Class11ART66 Axle Articulated Truck00.00% Class12BDB-Double00.00% Class13DRTDouble/ Road Train00.00% 
Class Bin Report
Class Name Description Number Percent of Total 
Class1 CYCLE Bicycle 144 33.33% 
Class2 MC Motorcycle 4 0.93% 
Class3 SV Car 198 45.83% 
Class4 SVT Car+Trailer 2 0.46% 
Class5 TB2 2 Axle Rigid Body Truck 32 7.41% 
Class6 TB3 3 Axle Rigid Body Truck 0 0.00% 
Class7 T4 4 Axle Rigid Body Truck 36 8.33% 
Class8 ART3 3 Axle Articulated Truck 6 1.39% 
Class9 ART4 4 Axle Articulated Truck 10 2.31% 
Class10 ART5 5 Axle Articulated Truck 0 0.00% 
Class11 ART6 6 Axle Articulated Truck 0 0.00% 
Class12 BD B-Double 0 0.00% 
Class13 DRT Double/ Road Train 0 0.00% 
T4:
Individual Vehicle Report for T4 Trucks
Individual Vehicle Report for T4 Trucks
Individual Vehicle Report for T4 Trucks
Individual Vehicle Report for T4 Trucks
Bicycle Combinations
Bicycle Combinations
Bicycle Combinations
bikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT WB-40) bikeART5(WB-50) ART5(WB-62) standardART3Non standardmotorcycleART6non standardDRT WB-40) WB-50) ART5(WB-62) standardmotorcycleART6non standardDRT non standardBD WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standard 
ARX Cycle Vehicle Classes 
1: Cycle (Bicycle) 
2: MC (Motorcycle) 
3: SV (Passenger Car) 
4: SVT (Car with Trailer) 
5: TB2 (Rigid-body 2 Axle Truck) 
6: TB3 (Rigid-body 3 Axle Truck) 
7: T4 (Rigid-body 4 Axle Truck) 
8: ART3 (3 Axle Articulated Truck) 
9: ART4 (4 Axle Articulated Truck) 
10: ART5 (5 Axle Articulated Truck) 
11: ART6 (6 Axle Articulated Truck) 
12: BD (B-Double) 
13: DRT (Double/ Road Train)
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
bike 
motorcycle 
SV SVT 
ART4 
(WB-40) 
ART5 
(WB-50) 
ART5 
(WB-62) 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
bike 
motorcycle 
SV SVT 
TB2 
TB3 
ART4 
(WB-40) 
bike 
ART5 
(WB-50) 
ART5 
(WB-62) 
T4 (non standard 
ART3 
Non standard 
motorcycle 
ART6 
non standard 
DRT non standard 
BD non standard 
ARX Cycle 
Vehicle Classes 
1: Cycle (Bicycle) 
2: MC (Motorcycle) 
3: SV (Passenger Car) 
4: SVT (Car with Trailer) 
5: TB2 (Rigid-body 2 Axle Truck) 
6: TB3 (Rigid-body 3 Axle Truck) 
7: T4 (Rigid-body 4 Axle Truck) 
8: ART3 (3 Axle Articulated Truck) 
9: ART4 (4 Axle Articulated Truck) 
10: ART5 (5 Axle Articulated Truck) 
11: ART6 (6 Axle Articulated Truck) 
12: BD (B-Double) 
13: DRT (Double/ Road Train) 
Let’s look at 
the T4 Class.
standardART3Non ARX Cycle Rules for T4: 
4 or more axles 
2 axle groups 
1st axle group 
2nd axle group 
T4 Class (Rigid-body 4 Axle Trucks)
standardART3Non ARX Cycle Rules for T4: 
4 or more axles 
2 axle groups 
1st axle group 
2nd axle group 
T4 Class (Rigid-body 4 Axle Trucks) 
Axles are in the same axle group if they are less than 5.4 ft apart from their neighbor
4 or more axles & 2 axle groups
4 or more axles & 2 axle groups
4 or more axles & 2 axle groups
standardART3Non ARX Cycle Rules for T4: 
4 or more axles 
2 axle groups 
1st axle group 
2nd axle group 
1st axle group 
2nd axle group 
Looking at the T4 Class
4 or more axles 
2 axle groups 
d1 > 4 ft 
standard 
ART3 
ARX Cycle Rules for T4: 
4 or more axles 
2 axle groups 
BOCO Rules for T4: 
d1 d1 
d1 for a bike almost 
never exceeds 4 ft. 
Editing the T4 Class
4 or more axles 
2 axle groups 
d1 > 4 ft 
standard 
ART3 
ARX Cycle Rules for T4: 
4 or more axles 
2 axle groups 
BOCO Rules for T4: 
d1 
BOCO Rules for 2Bikes: 
d1 d2 d3 
4 axles 
2 axle groups 
2.9 ft < d1 < 4 ft 
2.9 ft < d3 < 4 ft 
Editing the T4 Class
1: 1Bike (1 Bicycle) 
2: 2Bikes (2 Bicycles) 
3: 3Bikes (3 Bicycles) 
4: 4Bikes (4 Bicycles) 
5: MC (Motorcycle) 
6: SV (Passenger Car) 
7: SVT (Car with Trailer) 
8: TB2 (Rigid-body 2 Axle Truck) 
9: TB3 (Rigid-body 3 Axle Truck) 
10: T4 (Rigid-body 4 Axle Truck) 
11: ART3 (3 Axle Articulated Truck) 
12: ART4 (4 Axle Articulated Truck) 
13: ART5 (5 Axle Articulated Truck) 
14: ART6 (6 Axle Articulated Truck) 
15: BD (B-Double) 
16: DRT (Double/ Road Train) 
1: Cycle (Bicycle) 
2: MC (Motorcycle) 
3: SV (Passenger Car) 
4: SVT (Car with Trailer) 
5: TB2 (Rigid-body 2 Axle Truck) 
6: TB3 (Rigid-body 3 Axle Truck) 
7: T4 (Rigid-body 4 Axle Truck) 
8: ART3 (3 Axle Articulated Truck) 
9: ART4 (4 Axle Articulated Truck) 
10: ART5 (5 Axle Articulated Truck) 
11: ART6 (6 Axle Articulated Truck) 
12: BD (B-Double) 
13: DRT (Double/ Road Train) 
ARX Cycle Vehicle Classes BOCO Vehicle Classes
x 1 = 90 
x 2 = 16 
x 3 = 21 
x 4 = 4 
Total Bikes = 131
x 1 = 90 
x 2 = 16 
x 3 = 21 
x 4 = 4 
Total Bikes = 131 
The ARX Classification would have only counted 90 bikes 
but the BOCO Classification counted 131 bikes!
0.00% 10.00% 20.00% 30.00% 40.00% 50.00% 60.00% 70.00% 80.00% 90.00% 100.00% 05101520253035 Counter Accuracy 33' Group27' Group 4' Group Distance from counter (ft.) Counter Accuracy vs. Distance from CounterEcoBOCO 5' LoopARX 5' Loop
Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 
Applying Correction Factors 
(results from MetroCount using BOCO Scheme)
Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 
Applying Correction Factors 
Let’s say 1,000 bicyclists cross the tubes 4 feet from the counter.
Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 
Applying Correction Factors 
At this distance, the counter has an average accuracy of 94.68%, so we can expect 947 bicyclists will be counted.
Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 
Applying Correction Factors 
Using the correction factor to correct for the known undercount, we can calculate that 1,000 bicyclists crossed the tubes
Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 
Confidence Intervals & Margins of Error 
With a confidence interval of 2.68%, the margin of error for this count is ± 27 bicyclists
Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 
Now let’s look at the whole chart. 
Confidence Intervals & Margins of Error
Distance 
to 
Counter 
Number 
of Bikes 
Counter 
Accuracy 
95% 
Confidence 
Interval 
Number 
of bikes 
counted 
Correction 
Factor 
(1/accuracy) 
Corrected 
Number 
of Bikes 
Margin 
of Error 
(bikes) 
4' 1000 94.68% 2.68% 947 1.056 1000 ± 27 
27' 1000 54.72% 9.85% 547 1.827 1000 ± 99 
33' 1000 60.35% 8.95% 604 1.657 1000 ± 90 
Since the margins 
of error are larger 
at greater distances, 
using two counters 
will minimize the 
margin of error. 
Confidence Intervals & Margins of Error 
4’ 
4’
Ingredients for Success 
1. 
Thinner walled “bicycle” tubes; they still count cars just as well
Ingredients for Success 
1. 
Thinner walled “bicycle” tubes; they still count cars just as well 
2. 
A secure tube attachment method that avoids pinching or kinking
Ingredients for Success 
1. 
Thinner walled “bicycle” tubes; they still count cars just as well 
2. 
A secure tube attachment method that avoids pinching or kinking 
3. 
A copy of our “BOCO Classification Scheme” to use with your traffic analysis softwarebikemotorcycleSVSVTTB2TB3ART4(bikeART5(T4 (non standardART3Non
!( !(!( !( !(!( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !(!(!( !( !( !( !( !( !( !( !( !(!(!( !( !( !( !( !(!( !( !( !( !( !( !( !(!( !(!( !( !( !(!( !( !(!( !( !(!(!(!( !( !( !( !( !(!(!( !(!(!(!( !(!(!(!( !(!(!(!(!( !(!( !(!(!( !( !(!( !( !(!( !(!(!(!( !(!(!( !(! (!(!( !(!(!(!(!( !( !(!(!( !(!(!( !(!(!(!(!(!(!( !( !(!(!(!(!(!(! ( !( !( !( !(!( !( !( !( !(!( !(!( !(! (!( !(!(!(!(!(!(!(!( !( !(!( !( !( !( !( !(!(!(!(!( !( !( !( !( !(!( !(!(!( !( !(!(! (!(!(!(!(! ( !( !( !(!( !( !( !( !( !( !(!( !(!( !( !(!(!( !(!(!(!( !( !(!( !( !( !( !(!(!( !(! (!( !(!( !(!( !(!(!(!( !( !( !(! (!(!( !(!(!(!( !(!( !( !( !(!( !(!( !(!( !( !( !(!(!(!( !( !( !(!(!(!(!(!( !(!(!(!( !(!(!( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !( !( !(!(!( !( !( !( !( !(!( !( !(!( !( !( !(!( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !(!( !( !( !( !( !( !( !(!( !( !(!(!( !( !( !( !( !( !( 
Boulder County Traffic Stations
!( !( !( !( !( !( !( !( !( !( !(!(!( !(!( !( !( !( !( !( !( !( !(!( !(!( !(!( !(!( !( !( !( !( !( !( !( !(!(!( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !(!( !( !( !(!( !( !( !( !( !(!( !( !( #* !(!( !(!( !( !( #* #* !(!(!(!(!( #* !( !( !(!( !( !( !(!(!( !( !( !( #* !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( #* #*!( !( !( #* N 95TH STN 75TH ST JAY RD LOOKOUT RDBASELINE RDVALMONT RD N 63RD ST N 76TH ST N 61ST ST N 71ST ST BASELINE RDNIWOT RD LEE HILL DRSUNSHINE DR N 79TH ST VALMONT RD OLDE STAGE RDCHERRYVALE RD LINDEN DR NEVA RD N 57TH ST N 73RD ST FOURMILE CANYON DR N 63RD STSPINE RD N 45TH ST NIWOT RD ! ! ! # 7 Day Counts- 2 Counters24 Hour Counts- 2 Counters24 Hour Counts- 1 CounterUnpaved Road- No Bike Counts
What’s possible now? 
• 
Calculating Bicycle Miles Traveled (BMT) on county roads. 
• 
Tracking long term trends of bicycling rates. 
• 
Estimating county-wide and corridor specific mode share. (Using bike count data in combination with vehicle counts and transit ridership) 
• 
Better understanding of bicycle traffic and travel patterns during design phases of roadway projects. 
• 
Better prioritization of investments. (Should widths; intersection treatments) 
• 
Ability to evaluate the impact, use and safety of new investments.
Bicycle Counts with Pneumatic Tube Counters 
Alex Hyde-Wright 
Transportation Engineering Assistant 
Boulder County Transportation Department 
303.441.4910 
ahyde-wright@bouldercounty.org 
Brian Graham, AICP 
Bicycle Planner/ Employee Transportation Coordinator 
Boulder County Transportation Department 
720.564.2667 
bgraham@bouldercounty.org 
Krista Nordback, Ph.D, PE 
Researcher 
Oregon Transportation Research and Education Consortium (OTREC) 
503.725.2897 
nordback@pdx.edu
END OF PRESENTATION

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International Conference on Bicycle Urbanism-- Bike Counts

  • 1.
  • 2.
  • 4. City of BoulderCity of Longmont BOULDER COUNTY
  • 5. ! !! ! !! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! !! !!! ! ! ! ! ! ! ! ! !!! ! ! ! ! !! ! ! ! ! !! !! !! ! ! !! ! !! ! !!!! ! ! ! ! !!! !!!! !!!! !!!!! !!!!! ! !! !! ! !!!! !!! !! !! !!!!! ! !!!!!! !!!!!!! ! !!!!!!! ! ! ! !! ! ! ! !! !!!! ! !!!!!!!! ! !! ! ! ! ! !!!!! !! ! ! !! !!! ! !!! !!!!! ! ! !! ! ! ! ! !!! !! ! !!! !!!! ! !! ! ! ! !!! !! ! !! !! !!!!! ! !! !! !!!! !! !! !! !! !! ! ! !!!! ! ! !!!!!! !!!! !!!! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! !! ! ! !!! ! ! ! ! !! ! !! ! ! !! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !! ! ! !! ! ! ! ! ! ! !! ! !!! ! ! ! ! ! ! Boulder County Traffic Stations
  • 6. Typical Boulder County RoadsGravel RoadsRoads w/out shouldersRoads with shoulders
  • 8.
  • 9. NumHtYYYY-MM-DDhh:mm:ssDrSpeedWheelbaseHdwyGapAxGpRhoClNmVehicle00000002f47/18/201214:01:18BA45.35.240.740.6211110MCoo06547/18/201214:06:43AB223.40.60.5211110MCoo00000010c47/18/201214:32:40BA44.84.946.545.8211110MCoo018847/18/201214:56:49BA44.44.6123.8123.7211110MCoo0000001eb47/18/201215:05:47AB20.23.36.66.5211110MCoo0000002d647/18/201215:29:55BA27.63.835.735.7211120MCoo00000038a47/18/201215:50:59BA48.14.8101.9101.2211110MCoo0000003ca47/18/201215:58:29AB23.33.37.27.122110000001cMCoo048247/18/201216:17:02AB62.45.380.780.6211110MCoo0000004ca47/18/201216:23:00BA48.65.210.110211110MCoo00000054c47/18/201216:32:05AB56.85.17.16.9211120MCoo00000061b47/18/201216:46:12AB51.25.22.42.2211110MCoo00000068f47/18/201216:53:32BA534.29.29.1211110MCoo0000006c947/18/201216:59:43AB233.498.8211110MCoo074347/18/201217:09:28BA41.54.61.61.5211110MCoo00000074b47/18/201217:10:51AB525.466.966.8211110MCoo078747/18/201217:16:38BA47.54.479.179211110MCoo0000007b147/18/201217:19:12BA44.34.859.159211110MCoo0000007bd47/18/201217:20:00AB55.25.31.81.7211110MCoo0000007d547/18/201217:22:22AB55.25.343.9211110MCoo00000088a47/18/201217:32:09AB53.64.94.54.4211120MCoo00000088e47/18/201217:32:11BA43.74.5278.6278.4211110MCoo0000008aa47/18/201217:34:37AB18.23.347.947.8211110MCoo099447/18/201217:46:20AB60.75.4109.9211110MCoo099847/
  • 10. YYYY-MM-DD hh:mm:ss Dr Speed Wheelbase Hdwy Gap Ax Gp 4 7/18/2012 14:01:18 BA 45.3 5.2 40.7 40.6 2 1 4 7/18/2012 14:06:43 AB 22 3.4 0.6 0.5 2 1 4 7/18/2012 14:32:40 BA 44.8 4.9 46.5 45.8 2 1 4 7/18/2012 14:56:49 BA 27.6 3.8 35.7 35.7 2 1 4 7/18/2012 15:50:59 BA 48.1 4.8 101.9 101.2 2 1 4 7/18/2012 15:58:29 AB 41.5 4.6 1.6 1.5 2 1 4 7/18/2012 17:10:51 AB 44.3 4.8 59.1 59 2 1 18.2 3.3 47.9 47.8 2 1 4 7/18/2012 17:46:20 AB 60.7 5.4 10 9.9 2 1 44.4 4.6 123.8 123.7 2 1 4 7/18/2012 15:05:47 AB 20.2 3.3 6.6 6.5 2 1 4 7/18/2012 15:29:55 BA 23.3 3.3 7.2 7.1 2 2 4 7/18/2012 16:17:02 AB 62.4 5.3 80.7 80.6 2 1 4 7/18/2012 16:23:00 BA 48.6 5.2 10.1 10 2 1 4 7/18/2012 16:32:05 AB 56.8 5.1 7.1 6.9 2 1 4 7/18/2012 16:46:12 AB 51.2 5.2 2.4 2.2 2 1 4 7/18/2012 16:53:32 BA 53 4.2 9.2 9.1 2 1 4 7/18/2012 16:59:43 AB 23 3.4 9 8.8 2 1 4 7/18/2012 17:09:28 BA 52 5.4 66.9 66.8 2 1 4 7/18/2012 17:16:38 BA 47.5 4.4 79.1 79 2 1 4 7/18/2012 17:19:12 BA 4 7/18/2012 17:20:00 AB 55.2 5.3 1.8 1.7 2 1 4 7/18/2012 17:22:22 AB 55.2 5.3 4 3.9 2 1 4 7/18/2012 17:32:09 AB 53.6 4.9 4.5 4.4 2 1 4 7/18/2012 17:32:11 BA 43.7 4.5 278.6 278.4 2 1 4 7/18/2012 17:34:37 AB
  • 11. 012345601020304050607080 Vehicle Wheelbase (ft) Vehicle Speed (mph) Speed vs. Wheelbase -Motorcycle Class 4-6’ 3-4’
  • 12.
  • 14. beta Test- Attachment Methods and Counters Studied MetroCount: clear vinyl sleeve Eco-Counter: metal bracket
  • 15. Station Set-Ups Roads without Shoulders Roads with Shoulders 4 ft 4 ft 33 ft 27 ft Three Distance Groups: • 4’ Group • 27’ Group • 33’ Group
  • 16. Riding in Laps to Increase Quantity of Data
  • 17. Riding in Laps to Increase Quantity of Data
  • 18.
  • 19. ClassNameDescriptionNumberPercent of TotalClass1CYCLEBicycle14433.33% Class2MCMotorcycle40.93% Class3SVCar19845.83% Class4SVTCar+Trailer20.46% Class5TB22 Axle Rigid Body Truck327.41% Class6TB33 Axle Rigid Body Truck00.00% Class7T44 Axle Rigid Body Truck368.33% Class8ART33 Axle Articulated Truck61.39% Class9ART44 Axle Articulated Truck102.31% Class10ART55 Axle Articulated Truck00.00% Class11ART66 Axle Articulated Truck00.00% Class12BDB-Double00.00% Class13DRTDouble/ Road Train00.00% Class Bin Report
  • 20. Class Name Description Number Percent of Total Class1 CYCLE Bicycle 144 33.33% Class2 MC Motorcycle 4 0.93% Class3 SV Car 198 45.83% Class4 SVT Car+Trailer 2 0.46% Class5 TB2 2 Axle Rigid Body Truck 32 7.41% Class6 TB3 3 Axle Rigid Body Truck 0 0.00% Class7 T4 4 Axle Rigid Body Truck 36 8.33% Class8 ART3 3 Axle Articulated Truck 6 1.39% Class9 ART4 4 Axle Articulated Truck 10 2.31% Class10 ART5 5 Axle Articulated Truck 0 0.00% Class11 ART6 6 Axle Articulated Truck 0 0.00% Class12 BD B-Double 0 0.00% Class13 DRT Double/ Road Train 0 0.00% T4:
  • 21. Individual Vehicle Report for T4 Trucks
  • 22. Individual Vehicle Report for T4 Trucks
  • 23. Individual Vehicle Report for T4 Trucks
  • 24. Individual Vehicle Report for T4 Trucks
  • 28.
  • 29. bikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT WB-40) bikeART5(WB-50) ART5(WB-62) standardART3Non standardmotorcycleART6non standardDRT WB-40) WB-50) ART5(WB-62) standardmotorcycleART6non standardDRT non standardBD WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standardbikemotorcycleSVSVTTB2TB3ART4(WB-40) bikeART5(WB-50) ART5(WB-62) T4 (non standardART3Non standardmotorcycleART6non standardDRT non standardBD non standard ARX Cycle Vehicle Classes 1: Cycle (Bicycle) 2: MC (Motorcycle) 3: SV (Passenger Car) 4: SVT (Car with Trailer) 5: TB2 (Rigid-body 2 Axle Truck) 6: TB3 (Rigid-body 3 Axle Truck) 7: T4 (Rigid-body 4 Axle Truck) 8: ART3 (3 Axle Articulated Truck) 9: ART4 (4 Axle Articulated Truck) 10: ART5 (5 Axle Articulated Truck) 11: ART6 (6 Axle Articulated Truck) 12: BD (B-Double) 13: DRT (Double/ Road Train)
  • 30. bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) standard ART3 Non standard motorcycle ART6 non standard bike motorcycle SV SVT ART4 (WB-40) ART5 (WB-50) ART5 (WB-62) ART3 Non standard motorcycle ART6 non standard DRT non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard bike motorcycle SV SVT TB2 TB3 ART4 (WB-40) bike ART5 (WB-50) ART5 (WB-62) T4 (non standard ART3 Non standard motorcycle ART6 non standard DRT non standard BD non standard ARX Cycle Vehicle Classes 1: Cycle (Bicycle) 2: MC (Motorcycle) 3: SV (Passenger Car) 4: SVT (Car with Trailer) 5: TB2 (Rigid-body 2 Axle Truck) 6: TB3 (Rigid-body 3 Axle Truck) 7: T4 (Rigid-body 4 Axle Truck) 8: ART3 (3 Axle Articulated Truck) 9: ART4 (4 Axle Articulated Truck) 10: ART5 (5 Axle Articulated Truck) 11: ART6 (6 Axle Articulated Truck) 12: BD (B-Double) 13: DRT (Double/ Road Train) Let’s look at the T4 Class.
  • 31. standardART3Non ARX Cycle Rules for T4: 4 or more axles 2 axle groups 1st axle group 2nd axle group T4 Class (Rigid-body 4 Axle Trucks)
  • 32. standardART3Non ARX Cycle Rules for T4: 4 or more axles 2 axle groups 1st axle group 2nd axle group T4 Class (Rigid-body 4 Axle Trucks) Axles are in the same axle group if they are less than 5.4 ft apart from their neighbor
  • 33. 4 or more axles & 2 axle groups
  • 34. 4 or more axles & 2 axle groups
  • 35. 4 or more axles & 2 axle groups
  • 36. standardART3Non ARX Cycle Rules for T4: 4 or more axles 2 axle groups 1st axle group 2nd axle group 1st axle group 2nd axle group Looking at the T4 Class
  • 37. 4 or more axles 2 axle groups d1 > 4 ft standard ART3 ARX Cycle Rules for T4: 4 or more axles 2 axle groups BOCO Rules for T4: d1 d1 d1 for a bike almost never exceeds 4 ft. Editing the T4 Class
  • 38. 4 or more axles 2 axle groups d1 > 4 ft standard ART3 ARX Cycle Rules for T4: 4 or more axles 2 axle groups BOCO Rules for T4: d1 BOCO Rules for 2Bikes: d1 d2 d3 4 axles 2 axle groups 2.9 ft < d1 < 4 ft 2.9 ft < d3 < 4 ft Editing the T4 Class
  • 39. 1: 1Bike (1 Bicycle) 2: 2Bikes (2 Bicycles) 3: 3Bikes (3 Bicycles) 4: 4Bikes (4 Bicycles) 5: MC (Motorcycle) 6: SV (Passenger Car) 7: SVT (Car with Trailer) 8: TB2 (Rigid-body 2 Axle Truck) 9: TB3 (Rigid-body 3 Axle Truck) 10: T4 (Rigid-body 4 Axle Truck) 11: ART3 (3 Axle Articulated Truck) 12: ART4 (4 Axle Articulated Truck) 13: ART5 (5 Axle Articulated Truck) 14: ART6 (6 Axle Articulated Truck) 15: BD (B-Double) 16: DRT (Double/ Road Train) 1: Cycle (Bicycle) 2: MC (Motorcycle) 3: SV (Passenger Car) 4: SVT (Car with Trailer) 5: TB2 (Rigid-body 2 Axle Truck) 6: TB3 (Rigid-body 3 Axle Truck) 7: T4 (Rigid-body 4 Axle Truck) 8: ART3 (3 Axle Articulated Truck) 9: ART4 (4 Axle Articulated Truck) 10: ART5 (5 Axle Articulated Truck) 11: ART6 (6 Axle Articulated Truck) 12: BD (B-Double) 13: DRT (Double/ Road Train) ARX Cycle Vehicle Classes BOCO Vehicle Classes
  • 40.
  • 41. x 1 = 90 x 2 = 16 x 3 = 21 x 4 = 4 Total Bikes = 131
  • 42. x 1 = 90 x 2 = 16 x 3 = 21 x 4 = 4 Total Bikes = 131 The ARX Classification would have only counted 90 bikes but the BOCO Classification counted 131 bikes!
  • 43. 0.00% 10.00% 20.00% 30.00% 40.00% 50.00% 60.00% 70.00% 80.00% 90.00% 100.00% 05101520253035 Counter Accuracy 33' Group27' Group 4' Group Distance from counter (ft.) Counter Accuracy vs. Distance from CounterEcoBOCO 5' LoopARX 5' Loop
  • 44. Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 Applying Correction Factors (results from MetroCount using BOCO Scheme)
  • 45. Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 Applying Correction Factors Let’s say 1,000 bicyclists cross the tubes 4 feet from the counter.
  • 46. Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 Applying Correction Factors At this distance, the counter has an average accuracy of 94.68%, so we can expect 947 bicyclists will be counted.
  • 47. Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 Applying Correction Factors Using the correction factor to correct for the known undercount, we can calculate that 1,000 bicyclists crossed the tubes
  • 48. Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 Confidence Intervals & Margins of Error With a confidence interval of 2.68%, the margin of error for this count is ± 27 bicyclists
  • 49. Distance to CounterNumber of BikesCounter Accuracy95% Confidence IntervalNumber of bikes countedCorrection Factor (1/accuracy) Corrected Number of BikesMargin of Error (bikes) 4'100094.68%2.68%9471.0561000± 2727'100054.72%9.85%5471.8271000± 9933'100060.35%8.95%6041.6571000± 90 Now let’s look at the whole chart. Confidence Intervals & Margins of Error
  • 50. Distance to Counter Number of Bikes Counter Accuracy 95% Confidence Interval Number of bikes counted Correction Factor (1/accuracy) Corrected Number of Bikes Margin of Error (bikes) 4' 1000 94.68% 2.68% 947 1.056 1000 ± 27 27' 1000 54.72% 9.85% 547 1.827 1000 ± 99 33' 1000 60.35% 8.95% 604 1.657 1000 ± 90 Since the margins of error are larger at greater distances, using two counters will minimize the margin of error. Confidence Intervals & Margins of Error 4’ 4’
  • 51. Ingredients for Success 1. Thinner walled “bicycle” tubes; they still count cars just as well
  • 52. Ingredients for Success 1. Thinner walled “bicycle” tubes; they still count cars just as well 2. A secure tube attachment method that avoids pinching or kinking
  • 53. Ingredients for Success 1. Thinner walled “bicycle” tubes; they still count cars just as well 2. A secure tube attachment method that avoids pinching or kinking 3. A copy of our “BOCO Classification Scheme” to use with your traffic analysis softwarebikemotorcycleSVSVTTB2TB3ART4(bikeART5(T4 (non standardART3Non
  • 54. !( !(!( !( !(!( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !(!(!( !( !( !( !( !( !( !( !( !(!(!( !( !( !( !( !(!( !( !( !( !( !( !( !(!( !(!( !( !( !(!( !( !(!( !( !(!(!(!( !( !( !( !( !(!(!( !(!(!(!( !(!(!(!( !(!(!(!(!( !(!( !(!(!( !( !(!( !( !(!( !(!(!(!( !(!(!( !(! (!(!( !(!(!(!(!( !( !(!(!( !(!(!( !(!(!(!(!(!(!( !( !(!(!(!(!(!(! ( !( !( !( !(!( !( !( !( !(!( !(!( !(! (!( !(!(!(!(!(!(!(!( !( !(!( !( !( !( !( !(!(!(!(!( !( !( !( !( !(!( !(!(!( !( !(!(! (!(!(!(!(! ( !( !( !(!( !( !( !( !( !( !(!( !(!( !( !(!(!( !(!(!(!( !( !(!( !( !( !( !(!(!( !(! (!( !(!( !(!( !(!(!(!( !( !( !(! (!(!( !(!(!(!( !(!( !( !( !(!( !(!( !(!( !( !( !(!(!(!( !( !( !(!(!(!(!(!( !(!(!(!( !(!(!( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !( !( !(!(!( !( !( !( !( !(!( !( !(!( !( !( !(!( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !(!( !( !( !(!( !( !( !( !( !( !( !(!( !( !(!(!( !( !( !( !( !( !( Boulder County Traffic Stations
  • 55. !( !( !( !( !( !( !( !( !( !( !(!(!( !(!( !( !( !( !( !( !( !( !(!( !(!( !(!( !(!( !( !( !( !( !( !( !( !(!(!( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !(!( !( !( !(!( !( !( !( !( !(!( !( !( #* !(!( !(!( !( !( #* #* !(!(!(!(!( #* !( !( !(!( !( !( !(!(!( !( !( !( #* !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( #* #*!( !( !( #* N 95TH STN 75TH ST JAY RD LOOKOUT RDBASELINE RDVALMONT RD N 63RD ST N 76TH ST N 61ST ST N 71ST ST BASELINE RDNIWOT RD LEE HILL DRSUNSHINE DR N 79TH ST VALMONT RD OLDE STAGE RDCHERRYVALE RD LINDEN DR NEVA RD N 57TH ST N 73RD ST FOURMILE CANYON DR N 63RD STSPINE RD N 45TH ST NIWOT RD ! ! ! # 7 Day Counts- 2 Counters24 Hour Counts- 2 Counters24 Hour Counts- 1 CounterUnpaved Road- No Bike Counts
  • 56. What’s possible now? • Calculating Bicycle Miles Traveled (BMT) on county roads. • Tracking long term trends of bicycling rates. • Estimating county-wide and corridor specific mode share. (Using bike count data in combination with vehicle counts and transit ridership) • Better understanding of bicycle traffic and travel patterns during design phases of roadway projects. • Better prioritization of investments. (Should widths; intersection treatments) • Ability to evaluate the impact, use and safety of new investments.
  • 57. Bicycle Counts with Pneumatic Tube Counters Alex Hyde-Wright Transportation Engineering Assistant Boulder County Transportation Department 303.441.4910 ahyde-wright@bouldercounty.org Brian Graham, AICP Bicycle Planner/ Employee Transportation Coordinator Boulder County Transportation Department 720.564.2667 bgraham@bouldercounty.org Krista Nordback, Ph.D, PE Researcher Oregon Transportation Research and Education Consortium (OTREC) 503.725.2897 nordback@pdx.edu