Developing an Optimization Model to Manage Unpaved Roads

Table 7

Summary results optimizing the combination model in the first 3 months with a budget of $261 thousand.

Road #	Segment length (mi)	ADT	Existing rating	Project	Treatment type	Cost	Cost-factor	ADT	Rating
1	0.98	438	6	1	3	$4,921	0.1	438	8
2	1.99	438	3	1	5	$99,545	1	438	8
3	3.06	438	6	1	3	$15,298	0.1	438	8
4	0.95	438	6	1	3	$4,746	0.1	438	8
5	2.25	438	7	1	0	$—	0	438	8
6	6.93	438	6	1	3	$34,650	0.1	438	8
7	5.22	195	3	0	—	$—	1	—	0.12
8	5.21	195	7	1	0	$—	0	195	8
9	2.00	180	3	0	—	$—	1	—	0.12
10	3.00	180	3	0	—	$—	1	—	0.12
11	7.09	180	6	1	3	$35,450	0.1	180	8
12	2.02	166	3	0	—	$—	1	—	0.12
13	0.23	166	6	1	4	$3,460	0.3	166	8
14	1.01	166	6	1	3	$5,045	0.1	166	8
15	0.71	166	6	1	3	$3,564	0.1	166	8
16	1.28	166	6	1	3	$6,384	0.1	166	8
17	0.67	166	3	1	4	$10,108	0.3	166	8
18	2.01	166	7	1	0	$—	0	166	8
19	0.96	166	6	1	3	$4,800	0.1	166	8
20	0.24	166	6	1	3	$1,200	0.1	166	8
Weighted average						$229,173	0.36	226	6.13