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Modern Wide-span Spatial Metal Structures in Russia - Juniper Publishers

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Civil Engineering Research Journal- Juniper Publishers Abstract A great number of unique wide-span structures have been built in Russia in recent years. More than 30 new stadiums and covered arenas have been or are being built for the 2014 Winter Olympics and the 2018 Football World Cup. The most interesting of these are briefly described below. The objects were designed, manufactured and erected with the participation of TsNIISK. Keywords:  Wide-span construction; Spatial metal structures Go to Opinion Lokomotiv Football Stadium (Figure 1) with a capacity of 30,000. Its roof (206 by 157 m) covering the stands has an oval shape in plan and is suspended on guys attached to four reinforced-concrete pylons with a height of about 50 m erected at the stadium corners and supported by guy-wires. Olympic Stadium Fisht (Figure 2) with a capacity of 50,000 has an oval shape in plan (285 by 240 m). The main elements of the roofs are two main lattice arches with a span of 285 m and a height of 70
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Resilience in Flood by Innovative, Community-Serving Engineering Solutions- Juniper Publishers

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 Civil Engineering Research Journal - Juniper Publishers Introduction Over the last 20 years, communities in and around Houston, Texas have seen a number of major flooding events including, most notably, Tropical Storm Allison in 2001 and Hurricane Harvey in 2017. In each of these instances, flooding limited the ability of individuals and families to responsibly evacuate high-risk areas in a self-sufficient manner, while straining public resources as first responders worked to assist those who are physically incapable of seeking safety on their own. Hurricane Harvey proved to be the second most expensive natural disaster in American history, causing more than 125 billion dollars in damage throughout the city, damaging more than 200,000 homes, and displacing upwards of 30,000 individuals. In addition to the massive devastation related to the aforementioned generational rainstorms, separated by sixteen years, certain parts of the city have had to grapple with flooding that has become inc
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Public Transportation on the Era of Autonomous Vehicles: Exploring Different Scenarios-Juniper Publishers

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 Civil Engineering Research Journal- Juniper Publishers Abstract Research on vehicle automation has launched many years ago. Over the last decade, autonomous vehicles (AVs) have witnessed tremendous improvement because of the significant effort dedicated to AVs from both research and industry. Despite the enthusiastic speculation of AVs, little is known about the influence of vehicle automation on the public transit service. Thus, the main goal of this paper is to investigate and explore the implications of vehicle automation on the shape of public transit. In this paper three scenarios of AVs adoption are explored: autonomous vehicles are used for the entire trip (AV as a competitor to the public transportation), integrated AVs with the current public transit system (AVs are used to solve the first mile last mile problem to increase the attractive ness of the transit service), and fully autonomous buses. Finally, results show that a combination between scenario two and three is the re
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Impact of Geometry and Traffic on Urban Arterial Accidents-Juniper Publishers

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 Civil Engineering Research Journal- Juniper Publishers Abstract Major urban arterial streets in large cities are experienced a serious traffic accident problem. This study attempts to investigate the possible effect of traffic volumes and arterial geometry on traffic accidents, where arterials in Amman city were selected as a case study. Based on a set of predefined criteria, eight major urban arterial segments were selected. The number of traffic accidents and traffic volumes were obtained from the Public Security Directorate and Greater Amman Municipality, respectively, for the period from 2015 to 2017. Other geometric and operational data were obtained through field survey. The total sample sizes for daily and hourly accidents consisted of 1407 and 33768 observations, respectively. Negative Binomial regression model was used to investigate the impact of urban arterial traffic volumes and geometric design variables such as, segment length, number of horizontal curves, lane width, me
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