Table 6.1. Iowa Maintenance Routes for the MDSS Field Demonstration
Garage
Segment
Route
Start Mile
End Mile
ADT Range
Service
Number
Post
Post
Level
Ames
1
US 65
98.38
112.09
1500-2000
C
Ames
1
US 30
164.93
172.30
5000-6000
B
Ames
2
US 65
112.09
132.59
1000-2000
C
*Ames
3
I-35
111.60
128.46
20000-23000
A
Ames
4
I-35
96.60
111.60
23000-26000
A
*Ames
5
US 30
142.88
164.93
6000-27000
B
Ames
6
IA 210
13.79
34.43
1000-3000
D
B
Ames
-
I-35
Bridge
Bridge
20000-23000
A
*Des Moines North
7
I-35
93.20
96.60
26000-53000
A
Des Moines North
8
I-35
86.94
93.20
53000-59000
A
Des Moines North
9
I-80
137.82
142.10
50000-61000
A
Des Moines North
10
I-35/I-80
131.50
137.82
59000-63000
A
Des Moines West
11
I-35/I-80
123.53
131.50
32000-72000
A
Des Moines West
12
I-35
67.89
72.70
22000-33000
A
Des Moines West
13
I-235
0.00
8.80
42000-125000
A
Des Moines North
14
I-235
8.80
14.26
46000-125000
A
Des Moines North
15
IA 415
0.00
21.93
1000-21000
B-D
Service Levels:
A
Interstates
C
2,500 5,000 vehicles per day
B
5,000+ vehicles per day
D
less than 2,500 vehicles per day
Road condition data were only collected for a subset of the total routes supported by the
prototype MDSS in 2004. This decision was based on the need to collect quality data and
the fact that obtaining accurate road condition data throughout a storm is difficult,
manually intensive and time consuming. Road condition data were collected for the
following routes (see Fig. 6.1):
Ames Garage:
Routes #3 (I-35) and #5 (US 30)
Des Moines Garage:
Route #7 (I-35)
The three verification routes are highlighted in bold the Table 6.1 and annotated with an
asterisk. The selection of routes was based on several factors including proximity to an
RWIS, service level (traffic count), diversity of expected treatment plans, and proximity
to Lab, Iowa DOT Headquarters and CTRE support staff who were responsible for
collecting verification data and were staying in Ames.
12
Previous Page
