Monitoring and assessing the effects from Metro networks construction on the urban acoustic environment: The Athens Metro Line 3 Extension

Vogiatzis, Konstantinos; Zafiropoulou, Vassiliki; Mouzakis, Haralampos

doi:10.1016/j.scitotenv.2018.05.143

Cited by 25 publications

(6 citation statements)

References 4 publications

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“…The demo area in Athens consists of the 20 km rail corridor stretching from Athens Airport to Doukissis Plakentias rail station, along Attiki Odos toll road, which includes three intermediate stations in Eastern Attica: Pallini, Kantza and Koropi, all accessible via metro and suburban rail [55,57]. The suburban railway, which commenced its operation in 2004, is 20.7 km long and connects the Athens International Airport with the city center of Athens and the port of Piraeus.…”

Section: Demonstration Areamentioning

confidence: 99%

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An Evaluation and Prioritization Framework for Pilot First- and Last-Mile Ridesharing Services

Mitropoulos,

Kortsari,

Fotiou

et al. 2023

Sustainability

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Ridesharing is part of the innovative shared transport regime which aims to maximize the utilization of mobility resources. Gaining knowledge of ridesharing’s impacts and how to assess them can significantly improve such services and thus contribute to their adoption among broader groups of travelers and to travel behavior change. This paper presents the framework deployed for assessing the impacts of a first-/last-mile ridesharing pilot in Athens, Greece, and capturing stakeholders’ (i.e., a researcher organization, a public authority and an infrastructure provider) point of view about planning objectives. Four impact areas are defined in total, and Key Performance Indicators (KPIs) are used. In parallel, in order to understand the stakeholder priorities when designing ridesharing services, the Analytical Hierarchical Process is implemented to estimate weights for each impact area. Increasing rail ridership is considered the top priority for all stakeholders during the planning phase for a first-/last-mile ridesharing service, which may have various implications for future initiatives. In total, 28 participants used the ridesharing service as drivers and passengers during the demonstration period. Results show that although a ridesharing service is expected to be an asset in daily transport for city travelers, the technological constraints currently burden its usage. However, as supported by demo results and travelers’ experience, there is great potential of ridesharing to contribute to a sustainable transport system and serve as a first- and last-mile solution to public transport.

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Section: Demonstration Areamentioning

confidence: 99%

“…In Norwich (England), 57,192 Vehicle Kilometers Travelled (VKT) were saved (i.e., savings of 0.1% in CO 2 emissions).…”

mentioning

confidence: 99%

An Evaluation and Prioritization Framework for Pilot First- and Last-Mile Ridesharing Services

Mitropoulos,

Kortsari,

Fotiou

et al. 2023

Sustainability

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“…Floating slab solutions were often adopted as efficient mitigation measures (e.g. [177,178]) but can present a negative effect for feelable vibration by increasing the track response at low and medium frequencies: the principles of base isolation can explain this phenomenon (by reference to a single-degree-of-freedom model where the track is represented by a mass and the floating slab as a spring-damper element, see Figure 19). A second stage of mitigation solution can be proposed by means of dynamic vibration absorbers which reduce the amplification induced by a floating slab [179].…”

Section: Mitigation Of Feelable Vibrationmentioning

confidence: 99%

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Thompson

Kouroussis

Ntotsios

2019

Vehicle System Dynamics

136

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There is a great need to develop rail networks over long distances and within cities as more sustainable transport options. However, noise and vibration are seen as a negative environmental consequence. Compared with airborne noise, the related problem of ground vibration is much more complex. The properties of the ground vary significantly from one location to another. There is no common assessment criterion or measurement quantity and no equivalent to the noise maps. Ground-borne vibration is transmitted into buildings and perceived either as feelable whole-body vibration or as low frequency noise; it can also affect sensitive equipment but it is generally at a level that is too low to cause structural or cosmetic damage to buildings. A review is given of evaluation criteria for both feelable vibration and ground-borne noise, empirical and numerical prediction methods, the main vehicle and track parameters that can affect the vibration levels and a range of possible mitigation methods.

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“…On the hand, past research on vibration mitigation measures at the track (such as rail damper, under-sleeper pad, and ballast mat) has shown that these countermeasures can effectively improve track performance and insulate ground vibrations generated by moving trains at certain frequency ranges (Cao et al, 2014; Hamdan et al, 2015; Vogiatzis et al, 2018). It is inspired that these countermeasures may also be used in the vibration mitigation of superstructures located on metro depots.…”

Section: Introductionmentioning

confidence: 99%

Prediction and mitigation of train-induced vibrations of over-track buildings on a metro depot: Field measurement and numerical simulation

Wang

Cao

et al. 2022

Journal of Vibration and Control

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To predict the vibration transmission of over-track buildings and investigate the effectiveness of countermeasures, a fully coupled three-dimensional vibration prediction model for over-track buildings with consideration of the pile–soil interaction (PSI) was proposed. The accuracy of this prediction model was validated with field data from in-situ vibration monitoring in a metro depot. The consideration of PSI improved prediction accuracy about the vibration of over-track buildings. Then the effectiveness of different mitigation measures (rail damper and ballast mat) was investigated by this prediction model. It was found that the vibration of over-track buildings was dominated by vertical vibration components. Rail dampers significantly reduced the vibration in the high-frequency range above 80 Hz, while the vibration in the low-frequency range below 10 Hz was amplificated. The insertion loss of ballast mats reached 10 dB in the frequency range above 40 Hz except at the resonance frequency of the track, and mitigation effectiveness gradually decreased with increasing story height. This proposed method can predict the vibration level within over-track buildings and is an effective tool to guide the vibration mitigation design of over-track buildings.

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Monitoring and assessing the effects from Metro networks construction on the urban acoustic environment: The Athens Metro Line 3 Extension

Cited by 25 publications

References 4 publications

An Evaluation and Prioritization Framework for Pilot First- and Last-Mile Ridesharing Services

An Evaluation and Prioritization Framework for Pilot First- and Last-Mile Ridesharing Services

Modelling, simulation and evaluation of ground vibration caused by rail vehicles

Prediction and mitigation of train-induced vibrations of over-track buildings on a metro depot: Field measurement and numerical simulation

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