Road surface distress is an unavoidable situation due to age, vehicles overloading, temperature changes, etc. In the beginning, pavement maintenance actions took only place after having too much damage, which leads costly corrective actions. Therefore, scheduled road inspections can extend service life while guaranteeing users security and comfort. Traditional manual visual don’t meet nowadays ...

Abstract Pavement distress can interfere with the vehicle’s maneuver, causing vehicle to reduce its speed and change lane or do an evasive maneuver avoid it. These behaviors could impact traffic conflict significantly. This study aims identify of pavement on specifically when approaching poor conditions. The results show differences in responding for each type vehicle. Motorcycles tend lanes co...

Cold in-place recycling (CIR) has become an attractive method for rehabilitating asphalt roads that have good subgrade support and are suffering distress related to nonstructural aging and cracking of the pavement layer. Although CIR is widely used, its use could be expanded if its performance were more predictable. Transportation officials have observed roads that were recycled under similar c...

Automating pavement maintenance suggestions systems is challenging, especially for actionable recommendations such as patching location, depth, and priority. It a common practice among state agencies to manually inspect road segments of interest decide requirements based on the condition index (PCI). However, standalone PCI only evaluates surface which, coupled with variability in human percept...

Pavement distress data in a single section usually presents long-tailed distribution, with potholes, sealed cracks, and other distresses normally located at the tail. This distribution will seriously affect performance robustness of big data-driven deep learning detection models. Conventional augmentation algorithms only expand amount by image transformation fail to enlarge diversity. Due such ...

This work develops a method to inspect the quality of pavement conditions based on images captured from moving vehicles. This task is challenging because the appearance of road surfaces varies tremendously, depending on the construction materials (e.g., concrete, asphalt), the weather conditions (e.g., rain, snow), the illumination conditions (e.g., sunny, shadow), and the interference of other...

Figure 31 TEM micrographs of water borne polymer nanocomposite (WB PNC) emulsions.49 Figure 34 The reaction of an isocyanate with a compound containing hydroxyl functionality results in the formation of a polyurethane.. Introduction Coal tar is derived from crude coke oven tar that is a by-product of the combustion of coal in steel manufacturing. The crude coke oven tar is then refined, through...

An analysis of the use-stage for pavement life-cycle assessment (LCA) is presented within a framework of an LCA tool developed for Illinois Tollway. Methodological choices that can significantly affect LCA results were evaluated in this study. The share of the use-stage in a comprehensive pavement LCA framework was evaluated with all life-cycle stages including materials, construction, use, mai...