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Infrastructures, Volume 6, Issue 10

2021 October - 12 articles

Cover Story: The extension of the current urban transportation system utilizing the third dimension by air taxis represents a potential solution for the congestion of metropolitan areas. A major asset for AT operations is the connection to existing airports enabling access to multiple transportation systems. This paper develops an analytical model for AT operations and their capacity impact on airports, exemplary for Hamburg airport. The model is developed based on the results of a fast time simulation considering multiple aspects, such as vehicle configuration and touchdown and lift-off areas. Collectively, three integration methods are analyzed, each of them impacting the conventional air traffic differently. Additionally, an energy consumption analysis of the ATs is conducted. View this paper.
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Articles (12)

  • Article
  • Open Access
5 Citations
4,262 Views
20 Pages

Underwater tunnel structures are vital in urban areas, and their use is continuously increasing. The engineering assessments for these impressive phenomena have to be performed from both geotechnical and structural engineering perspectives. The desig...

  • Article
  • Open Access
23 Citations
3,967 Views
19 Pages

This paper examines the performance of multi-binder conventional geopolymer mixes (GCMs) with relatively high early strength, achieved through curing at ambient temperature. Mixes incorporating ground granulated blast-furnace slag (GGBS), fly ash (FA...

  • Article
  • Open Access
11 Citations
7,165 Views
11 Pages

Case Studies and Challenges of Implementing Geotechnical Building Information Modelling in Malaysia

  • Min Lee Lee,
  • Yee Linn Lee,
  • Sxue Liang Goh,
  • Chai Hoon Koo,
  • See Hung Lau and
  • Siaw Yah Chong

Unforeseen ground conditions are some of the main contributors to construction cost over-runs and late completion. Recent research trends have witnessed the scopes of building information modeling (BIM) technology being extended to subsoil and substr...

  • Communication
  • Open Access
1 Citations
2,155 Views
10 Pages

For dynamic analysis in seismic design, selection of input ground motions is of huge importance. In the presented scheme, complex Continuous Wavelet Transform (CWT) is utilized to simulate stochastic ground motions from historical records of earthqua...

  • Article
  • Open Access
13 Citations
3,231 Views
24 Pages

This study presents a rigorous approach for the extraction of the modulus of soil and unbound aggregate base materials for quality management using intelligent compaction (IC) technology. The proposed approach makes use of machine-learning methods in...

  • Article
  • Open Access
9 Citations
3,762 Views
18 Pages

The interest in restoration and maintenance of old masonries towards their durability is nowadays combined with the concept of sustainability and the need to implement more suitable materials for building heritage interventions. This has led to the i...

  • Article
  • Open Access
6 Citations
3,763 Views
17 Pages

This paper presents and discusses the application of a novel energy balance scheme for assessing energy efficiency in wastewater systems. The energy balance is demonstrated with a Portuguese real-life case study, using mathematical modelling to estim...

  • Article
  • Open Access
17 Citations
4,833 Views
18 Pages

Impact of Air Taxis on Air Traffic in the Vicinity of Airports

  • Nils Ahrenhold,
  • Oliver Pohling and
  • Sebastian Schier-Morgenthal

The extension of the current urban transportation system utilising the third dimension by air taxi (AT) operations represents a potential solution for the congestion of metropolitan areas. A major asset for AT operations is the connection to existing...

  • Article
  • Open Access
2 Citations
3,326 Views
16 Pages

A Scoping Study on Driver’s Perspective of Distracting Factors

  • Taleb M. Al-Rousan,
  • Abdullahi A. Umar,
  • Aslam A. Al-Omari,
  • Yahia A. Khalaylah,
  • Hamza M. Alkuime and
  • Ayoub H. Al-Rousan

Distracting activities while driving are common and can result in errors that threaten road users’ safety. The main objectives of this study were to investigate drivers’ perspectives of the factors contributing to distraction, determine the relative...

  • Article
  • Open Access
7 Citations
3,964 Views
22 Pages

Deep Reinforcement Learning Model to Mitigate Congestion in Real-Time Traffic Light Networks

  • Fábio de Souza Pereira Borges,
  • Adelayda Pallavicini Fonseca and
  • Reinaldo Crispiniano Garcia

Urban traffic congestion has a significant detrimental impact on the environment, public health and the economy, with at a high cost to society worldwide. Moreover, it is not possible to continually modify urban road infrastructure in order to mitiga...

  • Article
  • Open Access
4 Citations
3,595 Views
18 Pages

On the Applicability of Transfer Function Models for SSI Embedment Effects

  • Francesco Cavalieri,
  • António A. Correia and
  • Rui Pinho

Soil-structure interaction (SSI) effects are typically neglected for relatively lightweight buildings that are less than two-three storeys high with a limited footprint area and resting on shallow foundations (i.e., not featuring a basement). However...

  • Review
  • Open Access
53 Citations
15,759 Views
28 Pages

A Systematic Review of Artificial Intelligence Public Datasets for Railway Applications

  • Mauro José Pappaterra,
  • Francesco Flammini,
  • Valeria Vittorini and
  • Nikola Bešinović

The aim of this paper is to review existing publicly available and open artificial intelligence (AI) oriented datasets in different domains and subdomains of the railway sector. The contribution of this paper is an overview of AI-oriented railway dat...

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Infrastructures - ISSN 2412-3811