Abstract
System-level infrastructure management involves determining optimal maintenance, rehabilitation, and reconstruction activities for a system of facilities over a planning horizon to maximize the level of service subject to system constraints. In railway networks, different types of facilities (such as tracks, and bridges) comprise the system, and maintenance of one facility may affect the maintenance of other facilities, both economically and functionally. Therefore, when developing an asset management system for railway networks, it is essential to take into account heterogeneity and interdependency in the network. In this paper, a two-stage, bottom-up methodology is formulated to capture these interdependencies and heterogeneities in railroad infrastructure management. Numerical experiments are presented to examine the effects of economic and functional interdependencies on network optimization and to demonstrate the validity of the proposed model. The results show that accounting for heterogeneity and interdependencies at the system level can greatly influence the choice of activities and the estimated life-cycle cost.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 92-100 |
| Number of pages | 9 |
| Journal | Journal of Transportation Engineering |
| Volume | 139 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2013 |
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Keywords
- Economic factors
- Heterogeneity
- Infrastructure
- Interactive systems
- Maintenance
- Optimization
- Rail transportation
- System management
ASJC Scopus subject areas
- Civil and Structural Engineering
- Transportation
Cite this
Accounting for network effects in railway asset management. / Furuya, Akitoshi; Madanat, Samer.
In: Journal of Transportation Engineering, Vol. 139, No. 1, 01.01.2013, p. 92-100.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Accounting for network effects in railway asset management
AU - Furuya, Akitoshi
AU - Madanat, Samer
PY - 2013/1/1
Y1 - 2013/1/1
N2 - System-level infrastructure management involves determining optimal maintenance, rehabilitation, and reconstruction activities for a system of facilities over a planning horizon to maximize the level of service subject to system constraints. In railway networks, different types of facilities (such as tracks, and bridges) comprise the system, and maintenance of one facility may affect the maintenance of other facilities, both economically and functionally. Therefore, when developing an asset management system for railway networks, it is essential to take into account heterogeneity and interdependency in the network. In this paper, a two-stage, bottom-up methodology is formulated to capture these interdependencies and heterogeneities in railroad infrastructure management. Numerical experiments are presented to examine the effects of economic and functional interdependencies on network optimization and to demonstrate the validity of the proposed model. The results show that accounting for heterogeneity and interdependencies at the system level can greatly influence the choice of activities and the estimated life-cycle cost.
AB - System-level infrastructure management involves determining optimal maintenance, rehabilitation, and reconstruction activities for a system of facilities over a planning horizon to maximize the level of service subject to system constraints. In railway networks, different types of facilities (such as tracks, and bridges) comprise the system, and maintenance of one facility may affect the maintenance of other facilities, both economically and functionally. Therefore, when developing an asset management system for railway networks, it is essential to take into account heterogeneity and interdependency in the network. In this paper, a two-stage, bottom-up methodology is formulated to capture these interdependencies and heterogeneities in railroad infrastructure management. Numerical experiments are presented to examine the effects of economic and functional interdependencies on network optimization and to demonstrate the validity of the proposed model. The results show that accounting for heterogeneity and interdependencies at the system level can greatly influence the choice of activities and the estimated life-cycle cost.
KW - Economic factors
KW - Heterogeneity
KW - Infrastructure
KW - Interactive systems
KW - Maintenance
KW - Optimization
KW - Rail transportation
KW - System management
UR - http://www.scopus.com/inward/record.url?scp=84876701152&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84876701152&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)TE.1943-5436.0000477
DO - 10.1061/(ASCE)TE.1943-5436.0000477
M3 - Article
AN - SCOPUS:84876701152
VL - 139
SP - 92
EP - 100
JO - Transportation engineering journal of ASCE
JF - Transportation engineering journal of ASCE
SN - 0733-947X
IS - 1
ER -