On the Stabilizing Effect of Weigh Stations on Truck Equivalency Factors for Pavement Design
Publication: Journal of Transportation Engineering, Part B: Pavements
Volume 149, Issue 3
Abstract
In Costa Rica, weigh stations for trucks and commercial vehicles were reinstated in 2008. Since then, a stabilizing trend in the percentage of heavy vehicles with excess loading was observed. For pavement design purposes, this resulted in reduced variability in truck equivalency factors. These were statistically validated by processing all the weight data collected at different stations located throughout the national road network between 2008 and 2011. Using linear regressions, it was verified that given a constant noncompliance percentage, the truck equivalency factor for C2, C3, and T3-S2 vehicles tended to stabilize at 0.20, 0.66, 1.19, respectively. These results were consistent with additional power regression performed on the data. Higher weight enforcement on the T3-S3 vehicles’ tandem axle would result in a 0.17 decrease in the truck equivalency factor. The findings presented herein should aid countries that have yet to implement weigh stations, considering the benefits of exploring the evolution of truck factors if weigh stations were installed. This weigh station implementation case study exhibits the reality and development of pavement loading over time. Therefore, government authorities should be encouraged to control truck traffic with weigh stations to reduce pavement damage.
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Data Availability Statement
All data, models, or code that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This work was supported by Costa Rican Law 8114: Ley de simplificación y eficiencia tributaria. Furthermore, we wish to acknowledge the work performed by J. Arrieta and L. Rodríguez. The authors also wish to acknowledge the support of E. Sánchez-Solano and S. Sáenz-García for help in the statistical analyses performed for this study.
References
AASHTO. 1993. Guide for design of pavement structures. 4th ed. Washington, DC: AASHTO.
AASHTO. 2002. Mechanistic-empirical pavement design guide. Washington, DC: AASHTO.
Agbelie, B., S. Labi, and K. Sinha. 2017. “Estimating the marginal costs of bridge damage due to overweight vehicles using a modified equivalent-vehicle methodology and in-service data on lifecycle costs and usage.” Transp. Res. Part A Policy Pract. 95 (Jan): 275–288. https://doi.org/10.1016/j.tra.2016.11.008.
Allen, J., and G. Badilla. 2011. “Determinación de la carga de diseño para pavimentos flexibles en Costa Rica.” In IBWC XVI—Congress Ibero-Latin American Asphalt. Rio de Janeiro: Brazilian Institute of Oil, Gas, and Biofuels.
Amorim, S., M. Minhoto, and J. Pais. 2013. “Impact of traffic overload on road pavement performance.” J. Transp. Eng. 139 (9): 873–879. https://doi.org/10.1061/(ASCE)TE.1943-5436.0000571.
Arrieta, J. 2017. “Espectros de carga asociados con diferentes tipos de vehículos pesados en rutas de redes viales estratégicas nacionales no reguladas por estaciones de pesaje.” Thesis (GCert), Civil Engineering School, Univ. of Costa Rica.
Cha, H., B. Liu, A. Prakash, and A. Varma. 2016. “Effect of local damage cause by overweight trucks on the durability of steel bridges.” J. Perform. Constr. Facil. 30 (1): 1–11. https://doi.org/10.1061/(ASCE)CF.1943-5509.0000685.
Chou, C. 1996. “Effect of overloaded heavy vehicles on pavement and bridge design.” Transp. Res. Rec. 1539 (1): 58–65. https://doi.org/10.1177/0361198196153900108.
Dey, K. C., M. Chowdhury, W. Pang, B. J. Putman, and L. Chen. 2014. “Estimation of pavement and bridge damage costs caused by overweight trucks.” Transp. Res. Rec. 2411 (1): 62–71. https://doi.org/10.3141/2411-08.
Diario Oficial del El Salvador. 2013. Ley Especial de Transporte de Carga por Carretera. San Salvador, El Salvador: Diario Oficial del El Salvador.
Diario Oficial de Nicaragua. 2005. Reglamento de Ley General de Transporte Terrestre. Decreto N°42-2005. Managua, Nicaragua: Diario Oficial de Nicaragua, Gaceta.
FHWA (Federal Highway Administration). 2014. Traffic monitoring guide. Washington, DC: FHWA.
Garita, C., and G. Ortiz. 2016. “e-Bridge 3.0: A strategic approach to structural health monitoring of bridges in Costa Rica.” In IFIP world information technology forum, 205–210. Cham: Springer.
Lou, P., H. Nassif, D. Su, and P. Truban. 2017. “Impact of overweight trucks on the service life of bridge girders.” Transp. Res. Rec. 2642 (1): 103–117. https://doi.org/10.3141/2642-12.
Ministerio de Comunicaciones de Infraestructura y Vivienda. 2010. Reglamento para el Control de Pesos y Dimensiones de Vehículos Automotores de Carga y sus Combinaciones. Acuerdo Gubernativo 379-2010. Ciudad de Guatemala, Guatemala: Ministerio de Comunicaciones de Infraestructura y Vivienda.
MOPT (Ministry of Post and Telecommunications). 2006. Reglamento de circulación por carretera con base en el peso y las dimensiones de los vehículos de carga. 31363-MOPT. Monrovia, Liberia: MOPT.
Rodríguez, L. 2018. “Desarrollo de espectros de carga para rutas cantonales.” Thesis (GCert), Civil Engineering School, Univ. of Costa Rica.
Secretaría de Comunicaciones y Transportes. 2017. Sobre el peso y dimensiones máximas con los que pueden circular los vehículos de autotransporte que transitan en las vías generales de comunicación de jurisdicción federal. Norma Oficial Mexicana NOM-012-SCT-2-2017. Cuauhtémoc, Mexico: Secretaría de Comunicaciones y Transportes. Diario Oficial de la Federación.
Ulloa, Á., J. Allen, G. Badilla, and D. Sibaja. 2008. “Determinación de factores camión en pavimentos de Costa Rica.” Revista Infraestructura Vial 10 (19): 28–37. https://doi.org/10.1177/0361198119828283.
Vargas-Sobrado, A., L. Rodríguez-Solano, J. P. Aguiar-Moya, H. Hernández-Vega, and L. Loría-Salazar. 2019. “Truck weights on municipal and national roads without weight enforcement.” Transp. Res. Rec. 2673 (2): 275–284. https://doi.org/10.1177/0361198119828283.
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Published In
Journal of Transportation Engineering, Part B: Pavements
Volume 149 • Issue 3 • September 2023
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Dec 16, 2021
Accepted: Mar 24, 2023
Published online: May 26, 2023
Published in print: Sep 1, 2023
Discussion open until: Oct 26, 2023
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