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NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC.
Fleet DNA Project Data Summary Report
Kevin Walkowicz
Adam Duran
Evan Burton
PR 5400 57992
8/1/2014
The Fleet DNA Project:
The Fleet DNA Project aims to accelerate the development of advanced vehicle technologies while supporting the strategic deployment of market-ready technologies that reduce costs, fuel consumption, and emissions.
Designed by the U.S. Department of Energy’s National Renewable Energy Laboratory in partnership with Oak Ridge National Laboratory, the data summaries contained within this report are designed to illustrate the broad operation range of many of today’s vehicle vocations and to provide insight into key observable statistical trends.
Within This Report:
Contained within this report are graphical data summaries based on real-world “genetics” of medium- and heavy-duty commercial fleet vehicles operating within a chosen vocation.
These graphical data summaries have been selected to highlight key statistical trends observed in past U.S. DOE fleet studies, and to provide insight into potential areas of interest for the continued development of technology to reduce costs, fuel consumption, and emissions.
26 2 58 8 12 10 11 59 24 13 9 44 0 Deployment ID
0
200
400
600
800
1000
1150
Nu
mb
er
of
days
Breakdown of Total Operational Days Collected by Deployment for Class 8 Tractors
0%
20%
40%
60%
80%
100%
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
2 8 58 10 12 0 24 11 26 13 44 59 9 Deployment ID
0
10
20
30
40
50
60
7070 N
um
ber
of
Veh
icle
s
Breakdown of Total Vehicles by Deployment for Class 8 Tractors
0%
20%
40%
60%
80%
100%
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
26 58 12 2 13 10 11 8 59 24 44 9 0 Deployment ID
0
20000
40000
60000
80000
100000
110488
Nu
mb
er
of
Miles
Breakdown of Total Miles Collected by Deployment for Class 8 Tractors
0%
20%
40%
60%
80%
100%
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
10 20 30 40 50 Average Driving Speed (mph)
2
4
6
8
Kin
eti
c I
nte
nsit
y (
1/m
ile)
Daily Average Driving Speed vs. Kinetic Intensity for Class 8 Tractors
0
2
8
9
10
11
12
13
24
26
44
58
59
# of Vehicles Reporting: 70 # of Days Included: 1146Generated: Thu Aug 07, 2014
0 10 20 30 40 50 60 Average Driving Speed (mph)
0
100
200
300
400
500
600
Dis
tan
ce T
ravele
d (
miles)
Daily Average Driving Speed vs. Distance Traveled for Class 8 Tractors
1
2
3
4
5
6
7
8
9
10
11
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
Daily Average vs. Maximum Driving Speed for Class 8 TractorsM
axim
um
Dri
vin
g S
peed
(m
ph
)
80
70
60
50
40
30
0
2
8
9
10
11
12
13
24
26
44
58
59
10 20 30 40 50 Average Driving Speed (mph)
# of Vehicles Reporting: 70 Generated: Thu Aug 07, 2014 # of Days Included: 1146
0 10 20 30 40 50 60 Average Driving Speed (mph)
0
20
40
60
80
100
120
Fre
qu
en
cy
Daily Average Driving Speed Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: : 1150Generated: Thu Aug 07, 2014
0 2 8 9 10 11 12 13 24 26 44 58 59 Deployment ID
10
20
30
40
50
Avera
ge D
rivin
g S
peed
(m
ph
) Average Driving Speed by Deployment for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: : 1150Generated: Thu Aug 07, 2014
2.0 1.5 1.0 0.5 0.0 0.5 Mean Road Grade
0
1
2
3
4
5
6 K
ineti
c I
nte
nsit
y (
1/m
ile)
Daily Mean Road Grade vs. Kinetic Intensity for Class 8 Tractors
6
12
18
24
30
36
42
48
54
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1143Generated: Thu Aug 07, 2014
2.0 1.5 1.0 0.5 0.0 0.5 Mean Road Grade
0
100
200
300
400
500
600
Dis
tan
ce T
ravele
d (
miles)
Daily Mean Road Grade vs. Distance Traveled for Class 8 Tractors
8
16
24
32
40
48
56
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 2 8 9 10 11 12 13 24 26 44 58 59 Deployment ID
0.4
0.2
0.0
0.2
0.4
Mean
Road
Gra
de
Daily Mean Road Grade by Deployment for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1147Generated: Thu Aug 07, 2014
2.0 1.5 1.0 0.5 0.0 0.5 Mean Road Grade
0
10
20
30
40
50
60 A
vera
ge D
rivin
g S
peed
(m
ph
) Daily Mean Road Grade vs. Average Driving Speed (mph) for Class 8 Tractors
2.5
5.0
7.5
10.0
12.5
15.0
17.5
20.0
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
1.5 1.0 0.5 0.0 Mean Road Grade
1
2
3
4
5
6
7
8
# o
f S
top
s p
er
Mile
Daily Mean Road Grade vs. # of Stops per Mile for Class 8 Tractors
0
2
8
9
10
11
12
13
24
26
44
58
59
# of Vehicles Reporting: 70 # of Days Included: 1146Generated: Thu Aug 07, 2014
0 10 20 30 40 50 60 Average Driving Speed (mph)
0.5
1.0
1.5
2.0
2.5
3.0 A
vera
ge P
osit
ive A
ccele
rati
on
(ft
/s^
2)
Road Grade and Distance Correlation Examined for Class 8 Tractors
Distance Maximun
Minimum
1.50
1.25
1.00
0.75
0.50
0.25
0.00
0.25
Mean D
aily
Road G
rade
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 2 4 6 8 10 12 14 # of Stops per Mile
0.5
1.0
1.5
2.0
2.5
3.0 A
vera
ge A
ccele
rati
on
(ft
/s^
2)
Average Driving Speed and Distance Correlation Examined for Class 8 Tractors
Distance, Mile Maximun
Minimum
10
15
20
25
30
35
40
45
50
Avera
ge D
rivin
g S
peed (
mph)
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 2 4 6 8 10 12 # of Stops per Mile
0.5
1.0
1.5
2.0
2.5 A
vera
ge A
ccele
rati
on
(ft
/s^
2)
Detailed Average Driving Speed and Distance Correlation Examined for Class 8 Tractors
Distance, Mile Maximun
Minimum
10
15
20
25
30
35
40
45
50
Avera
ge D
rivin
g S
peed (
mph)
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 10 20 30 40 50 Average Driving Speed (mph)
0.5
1.0
1.5
2.0
2.5
3.0 A
vera
ge A
ccele
rati
on
(ft
/s^
2)
Stops per Mile and Distance Correlation Examined for Class 8 Tractors
Distance Maximun
Minimum
1
2
3
4
5
6
7
8
Sto
ps
per
Mile
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
1 2 3 4 5 6 7 8 # of Stops Per Mile
10
20
30
40
50
Avera
ge D
rivin
g S
peed
(m
ph
) Daily Stops per Mile vs. Average Driving Speed for Class 8 Tractors
0
2
8
9
10
11
12
13
24
26
44
58
59
# of Vehicles Reporting: 70 # of Days Included: 1147Generated: Thu Aug 07, 2014
0 2 8 9 10 11 12 13 24 26 44 58 59 Deployment ID
1
2
3
4
5
6
7
8
# o
f S
top
s P
er
Mile
Stops Per Mile by Deployment for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 1 2 3 4 5 6 7 8 9 # of Stops Per Mile
0
1
2
3
4
5
6
7
8
9 K
ineti
c I
nte
nsit
y (
1/m
ile)
Daily Stops Per Mile vs. Kinetic Intensity for Class 8 Tractors
8
16
24
32
40
48
56
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 1 2 3 4 5 6 7 8 9 # of Stops Per Mile
0
50
100
150
200
250
300
350
400
450
Fre
qu
en
cy
Daily Stops Per Mile Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
50 100 150 200 250 300 Total Number of Stops
5
10
15
20
Op
era
tin
g T
ime (
hrs
) Daily Total Number of Stops vs. Operating Time for Class 8 Tractors
0
2
8
9
10
11
12
13
24
26
44
58
59
# of Vehicles Reporting: 70 # of Days Included: 1145Generated: Thu Aug 07, 2014
50 100 150 200 250 300 Total Number of Stops
50
100
150
200
Dis
tan
ce T
ravele
d (
miles)
Daily Total Number of Stops vs. Distance Traveled for Class 8 Tractors
0
2
8
9
10
11
12
13
24
26
44
58
59
# of Vehicles Reporting: 70 # of Days Included: 1082Generated: Thu Aug 07, 2014
20 30 40 50 60 70 80 Maximum Driving Speed (mph)
0
50
100
150
200
250
Fre
qu
en
cy
Maximum Driving Speed Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 1 2 3 4 5 6 7 8 9 Kinetic Intensity (1/mile)
0
100
200
300
400
500
600
Fre
qu
en
cy
Daily Kinetic Intensity Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 2 8 9 10 11 12 13 24 26 44 58 59 Deployment ID
100
200
300
400
500
Dis
tan
ce T
ravele
d (
miles)
Daily Distance Traveled by Deployment for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 100 200 300 400 500 600 Distance Traveled (miles)
0
50
100
150
200
250
300
350
Fre
qu
en
cy
Daily Operating Distance Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 20 40 60 80 100 Zero Speed Time (% of Cycle)
0
20
40
60
80
100
120
140
Fre
qu
en
cy
Daily Zero Speed Cycle Percentage Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 2 8 9 10 11 12 13 24 26 44 58 59 Deployment ID
0
20
40
60
80
100
Zero
Sp
eed
Tim
e (
% o
f C
ycle
) Daily Zero Speed Cycle Percentage by Deployment for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
Qu
an
tity
of
Data
Cap
ture
d (
hrs
)
100
200
300
400
Captured Operating Time by Speed Bin (mph) for Class 8 Tractors
0+
to 5
5+
to 1
0
10
+ t
o 1
5
15
+ t
o 2
0
20
+ t
o 2
5
25
+ t
o 3
0
30
+ t
o 3
5
35
+ t
o 4
0
40
+ t
o 4
5
45
+ t
o 5
0
50
+ t
o 5
5
55
+ t
o 6
0
60
+ t
o 6
5
65
+ t
o 7
0
70
+ t
o 7
5
75
+
Driving Speed (mph)# of Vehicles Reporting: 70 Generated: Thu Aug 07, 2014 # of Days Included: 1150
0
% o
f Tota
l C
ap
ture
d D
ata
2
4
6
8
10
12
14
Captured Operating Time by Speed Bin (mph) for Class 8 Tractors
0+
to 5
5+
to 1
0
10
+ t
o 1
5
15
+ t
o 2
0
20
+ t
o 2
5
25
+ t
o 3
0
30
+ t
o 3
5
35
+ t
o 4
0
40
+ t
o 4
5
45
+ t
o 5
0
50
+ t
o 5
5
55
+ t
o 6
0
60
+ t
o 6
5
65
+ t
o 7
0
70
+ t
o 7
5
75
+
Driving Speed (mph)# of Vehicles Reporting: 70 Generated: Thu Aug 07, 2014 # of Days Included: 1150
0
Tota
l M
iles C
ollecte
d
0
5000
10000
15000
20000
25000
Total Mileage Collected by Speed Bin (mph) for Class 8 Tractors
0+
to 5
5+
to 1
0
10
+ t
o 1
5
15
+ t
o 2
0
20
+ t
o 2
5
25
+ t
o 3
0
30
+ t
o 3
5
35
+ t
o 4
0
40
+ t
o 4
5
45
+ t
o 5
0
50
+ t
o 5
5
55
+ t
o 6
0
60
+ t
o 6
5
65
+ t
o 7
0
70
+ t
o 7
5
75
+
Driving Speed (mph)# of Vehicles Reporting: 70 Generated: Thu Aug 07, 2014 # of Days Included: 1150
% o
f M
iles C
ollecte
d
5
10
15
20
Total Mileage Collected by Speed Bin (mph) for Class 8 Tractors
0+
to 5
5+
to 1
0
10
+ t
o 1
5
15
+ t
o 2
0
20
+ t
o 2
5
25
+ t
o 3
0
30
+ t
o 3
5
35
+ t
o 4
0
40
+ t
o 4
5
45
+ t
o 5
0
50
+ t
o 5
5
55
+ t
o 6
0
60
+ t
o 6
5
65
+ t
o 7
0
70
+ t
o 7
5
75
+
Driving Speed (mph)# of Vehicles Reporting: 70 Generated: Thu Aug 07, 2014 # of Days Included: 1150
0
Fre
qu
en
cy
Daily Average Acceleration Rate for Class 8 Tractors160
140
120
100
80
60
40
20
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0
Average Acceleration (ft/s^2)
# of Vehicles Reporting: 70 Generated: Thu Aug 07, 2014 # of Days Included: 1150
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 Average Acceleration (ft/s^2)
2
4
6
8
10
12
14
16
18
20 M
axim
um
Accele
rati
on
(ft
/s^
2)
Daily Average Acceleration vs. Maximum Acceleration for Class 8 Tractors
1.6
2.4
3.2
4.0
4.8
5.6
6.4
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
2 4 6 8 10 12 14 16 18 20 Maximum Acceleration (ft/s^2)
0
50
100
150
200
250
300
Fre
qu
en
cy
Daily Maximum Acceleration Rate for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Average Deceleration (ft/s^2)
0
20
40
60
80
100
120
140
160
Fre
qu
en
cy
Daily Average Deceleration Rate for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 Average Deceleration (ft/s^2)
20
18
16
14
12
10
8
6
4
2
Maxim
um
Decele
rati
on
(ft
/s^
2)
Daily Average Deceleration vs. Maximum Deceleration for Class 8 Tractors
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
6.0
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
20 18 16 14 12 10 8 6 4 2 Maximum Deceleration (ft/s^2)
0
50
100
150
200
250
Fre
qu
en
cy
Daily Maximum Deceleration Rate for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 5 10 15 20 25 Operating Time (hrs)
0
100
200
300
400
500
600
Dis
tan
ce T
ravele
d (
miles)
Daily Operating Time vs. Distance Traveled for Class 8 Tractors
2
4
6
8
10
12
14
16
18
Num
ber
of
Days
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 5 10 15 20 25 Operating Time (hrs)
0
10
20
30
40
50
Avera
ge D
rivin
g S
peed
(m
ph
) Daily Operating Time vs. Average Driving Speed for Class 8 Tractors
0
2
8
9
10
11
12
13
24
26
44
58
59
# of Vehicles Reporting: 70 # of Days Included: 1149Generated: Thu Aug 07, 2014
0 5 10 15 20 25 Operating Time (hrs)
0
50
100
150
200
250
300
Fre
qu
en
cy
Daily Operating Time Distribution for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
0 2 8 9 10 11 12 13 24 26 44 58 59 Deployment ID
5
10
15
20
Op
era
tin
g T
ime (
hrs
) Operating Time by Deployment for Class 8 Tractors
# of Vehicles Reporting: 70 # of Days Included: 1150Generated: Thu Aug 07, 2014
Interested in Participating?
The statistical summaries presented in this report were generated with the support of a variety of organizations. It is through the continued support of these partner organizations that Fleet DNA continues to grow.
For more information about the project or to discuss partnership opportunities including contribution of data to the database, please contact:
Adam Duran
303.275.4586
Adam.Duran@nrel.gov
www.nrel.gov/fleetdna