Pavement condition monitoring and its timely maintenance is necessary to ensure the safety and quality of the roadway infrastructure. The International Roughness Index (IRI) is a commonly used measure to quantify road...Pavement condition monitoring and its timely maintenance is necessary to ensure the safety and quality of the roadway infrastructure. The International Roughness Index (IRI) is a commonly used measure to quantify road surface roughness and is a critical input to asset management. In Indiana, the IRI statistic contributes to roughly half of the pavement quality index computation used for asset management. Most agencies inventory IRI once a year, however, pavement conditions vary much more frequently. The objective of this paper is to develop a framework using crowdsourced connected vehicle data to identify and detect temporal changes in IRI. Over 3 billion connected vehicle records in Indiana were analyzed across 30 months between 2022 and 2024 to understand the spatiotemporal variations in roughness. Annual comparisons across all major interstates in Indiana showed the miles of interstates classified as “Good” decreased from 1896 to 1661 miles between 2022 and 2024. The miles of interstate classified as “Needs Maintenance” increased from 82 to 120 miles. A detailed case study showing monthly and daily changes of estimated IRI on I-65 are presented along with supporting dashcam images. Although the crowdsourced IRI estimates are not as robust as traditional specialized pavement profilers, they can be obtained on a monthly, weekly, or even daily basis. The paper concludes by suggesting a combination of frequent crowdsourced IRI and commercially available dashcam imagery of roadway can provide an agile and responsive mechanism for agencies to implement pavement asset management programs that can complement existing annual programs.展开更多
In order to shorten the gap between urban and rural areas, the state builds roads and bridges in rural areas, which not only drives the development of rural production but also facilitates peoples daily travel. The tr...In order to shorten the gap between urban and rural areas, the state builds roads and bridges in rural areas, which not only drives the development of rural production but also facilitates peoples daily travel. The traffic volume of roads in rural areas is lower than that in cities. In contrast, the performance requirements of roads in rural areas are lower, and cement concrete pavement is often used. Concrete pavement is widely used in rural road construction because of its advantages such as high strength, strong pavement stability and long service life, but it is affected by factors such as low quality of technicians and limited construction equipment. Many rural cement concrete pavements have a short service life. This paper will focus on the analysis of the construction process, key difficulties and how to improve the construction quality of cement concrete pavement in rural areas. I hope this article can provide reference for rural highway engineering construction.展开更多
文摘Pavement condition monitoring and its timely maintenance is necessary to ensure the safety and quality of the roadway infrastructure. The International Roughness Index (IRI) is a commonly used measure to quantify road surface roughness and is a critical input to asset management. In Indiana, the IRI statistic contributes to roughly half of the pavement quality index computation used for asset management. Most agencies inventory IRI once a year, however, pavement conditions vary much more frequently. The objective of this paper is to develop a framework using crowdsourced connected vehicle data to identify and detect temporal changes in IRI. Over 3 billion connected vehicle records in Indiana were analyzed across 30 months between 2022 and 2024 to understand the spatiotemporal variations in roughness. Annual comparisons across all major interstates in Indiana showed the miles of interstates classified as “Good” decreased from 1896 to 1661 miles between 2022 and 2024. The miles of interstate classified as “Needs Maintenance” increased from 82 to 120 miles. A detailed case study showing monthly and daily changes of estimated IRI on I-65 are presented along with supporting dashcam images. Although the crowdsourced IRI estimates are not as robust as traditional specialized pavement profilers, they can be obtained on a monthly, weekly, or even daily basis. The paper concludes by suggesting a combination of frequent crowdsourced IRI and commercially available dashcam imagery of roadway can provide an agile and responsive mechanism for agencies to implement pavement asset management programs that can complement existing annual programs.
文摘In order to shorten the gap between urban and rural areas, the state builds roads and bridges in rural areas, which not only drives the development of rural production but also facilitates peoples daily travel. The traffic volume of roads in rural areas is lower than that in cities. In contrast, the performance requirements of roads in rural areas are lower, and cement concrete pavement is often used. Concrete pavement is widely used in rural road construction because of its advantages such as high strength, strong pavement stability and long service life, but it is affected by factors such as low quality of technicians and limited construction equipment. Many rural cement concrete pavements have a short service life. This paper will focus on the analysis of the construction process, key difficulties and how to improve the construction quality of cement concrete pavement in rural areas. I hope this article can provide reference for rural highway engineering construction.
