In Egypt, recently, unconventional intersections have gained popularity among policymakers where conventional countermeasures that exemplify increasing cycle length, actuated signals, and signal coordination systems did not have the ability to overcome the operational problems of traffic congestion. The most important of these intersections is the intersection of the median U-turn (MUT). This research evaluated and investigated the operational performance of ... إقراء المزيد

A sudden change in the pipeline's velocity results in a transient flow known as a "water hammer" in pipes. This phenomenon can cause negative and positive pressure in the pipeline and is often dangerous where the pipe can burst if the pressure is high enough. Therefore, it is necessary to study the variables affecting the water hammer to have a ... إقراء المزيد

Moisture presents a significant challenge for flexible pavements, as it can cause a range of issues, including asphalt stripping, leading to decreased durability and service life of the pavements. This, in turn, results in higher construction and maintenance costs. The primary objective of this research is to examine the moisture sensitivity of hot asphalt mixtures by incorporating medical plastic waste ... إقراء المزيد

There has been numerous research on the uses of treated wastewater that needs chlorine disinfection, but none have looked at the impacts of injecting nanobubbles (NBs) on the decomposition of residual chlorine. Gas NB injection in treated wastewater improves its properties. The kinetics of disinfectant decay could be impacted by changes in treated wastewater properties. This paper studies the effect ... إقراء المزيد

This study investigates the potential of two bitumen modifiers, high~~~~-density polyethylene (HDPE) and nano clay (NC), to enhance the rutting resistance of asphalt mixture. Four HDPE asphalt binders were prepared by mixing the HDPE at percentages of 2%, 4%, 6%, and 8% with the virgin binder, while four NC asphalt binders were produced by mixing the NC at percentages of ... إقراء المزيد

Nanobubbles (NBs) have potential properties, are environmentally friendly, and are sustainable to be used in a variety of applications: industries, agriculture, medical technology, and engineering applications such as water/wastewater treatment. This paper focuses on improving the characteristics of municipal secondary effluent (SE) utilizing oxygen bubbles (OBs), conventional coarse air bubbles (ABs), oxygen nanobubbles (ONBs), and air nanobubbles (ANBs). NBs were ... إقراء المزيد

Egypt's limited water resources and rising water demand are critical to the country's economy and food security. This predicament encouraged the development of non-traditional water resources in order to bridge the gap between supply and demand for water. treated wastewater (TWW) reuse for irrigation is a viable alternative for closing this gap and conserving traditional water resources for residential and ... إقراء المزيد

Traditionally, the 85th percentile of observed speeds is used to represent the operating speed associated with a specific site with certain geometric features. The presence of sunlight enhances the vision of drivers during daytime while visibility usually degrades during nighttime, especially on rural roads where no street lighting exists, and drivers would depend solely on their vehicle headlights. Visibility degradation ... إقراء المزيد

One of the most important issues and challenges nowadays in Egypt is how to provide enough water for current and future needs. The great population growth, agricultural consumption, climate change, limited freshwater resources, and welfare lifestyle require more water. All these factors push the Egyptian policy to search for additional water resources. One of the considerable water resources is the ... إقراء المزيد

Egypt's desert covers more than two-thirds of the country's entire surface area. As a result, in recent years, the Egyptian government has tended to exploit those spaces by constructing new cities, such as New Sohag. The city of New Sohag was founded in the western desert near the Nile River. Although, these new cities appear to be a cure for ... إقراء المزيد