Results 71 to 80 of about 141 (122)

Dipolar Order Mapping Based on Spin‐Lock Magnetic Resonance Imaging

NMR in Biomedicine, Volume 39, Issue 7, July 2026.
To quantify the dipolar order relaxation time T1D$$ {T}_{1D} $$ using spin‐lock MRI technique, we introduce a T1D$$ {T}_{1D} $$‐specific ratio, denoted as RATIOdosl$$ {RATIO}_{dosl} $$. A novel rotary‐echo spin‐lock sequence was developed to enable dual‐frequency spin‐lock acquisition.
Zijian Gao, Qianxue Shan, Ziqin Zhou, Ziqiang Yu, Weitian Chen   +4 more
wiley   +1 more source

Total capacity and LOS estimation of innovative and conventional roundabouts through macroscopic fundamental diagrams

Transportation Research Interdisciplinary Perspectives
Traffic congestion remains a significant problem, especially in urban areas. To avoid congestion phenomena, several measures can be adopted, including the construction of roundabouts and the control of the measures of effectiveness (MOEs) at ...
Marco Guerrieri
doaj   +1 more source

A Synthesis of Practice in the Use of Turbo Roundabouts

The turbo roundabout by reducing speeds and enhancing separation between users, turbo roundabouts support the Safe System Approach to reduce the severity and incidence of crashes. This presentation summarizes the safety and operational performance and key considerations for successful implementation in the US.
Issifu, Bernard Ndeogo, Naik, Bhaven
openaire   +1 more source

A theoretical model for evaluating the impact of connected and autonomous vehicles on the operational performance of turbo roundabouts

International Journal of Transportation Science and Technology
This article presents a methodology to estimate the entry capacity (EC) and total capacity (TC) of basic turbo roundabouts under partial and fully connected and autonomous vehicle (CAV) environments. EC calculations are partially based on capacity models
Marco Guerrieri
doaj   +1 more source

Evaluating Intersection Performance Under Land-Use-Generated Traffic Increases: A Turbo Roundabout Application

Urban Science
Large retail developments act as strong trip attractors and can substantially alter traffic demand patterns at adjacent urban intersections. This paper analyzes the operational impacts of a major shopping center on two nearby signalized intersections in ...
Nenad Ruškić, Andrea Kovačević, Valentina Mirović, Jelena Mitrović Simić   +3 more
doaj   +1 more source

Simulation-Based Analysis of "What-If" Scenarios with Connected and Automated Vehicles Navigating Roundabouts. [PDF]

Sensors (Basel), 2022
Tumminello ML, Macioszek E, Granà A, Giuffrè T.   +3 more
europepmc   +1 more source

Calculation of an Average Vehicle's Sideways Acceleration on Small Roundabouts. [PDF]

Sensors (Basel), 2022
Jagelčák J, Gnap J, Kostrzewski M, Kuba O, Frnda J.   +4 more
europepmc   +1 more source

Using a Microsimulation Traffic Model and the Vehicle-Specific Power Method to Assess Turbo-Roundabouts as Environmentally Sustainable Road Design Solutions

Future Transportation
The European Union’s path towards zero carbon dioxide emissions for new passenger vehicles necessitates a transitional period in which conventional vehicles coexist with zero-emission alternatives.
Apostolos Anagnostopoulos, Athanasios Galanis, Fotini Kehagia, Ioannis Politis, Athanasios Theofilatos, Panagiotis Lemonakis   +5 more
doaj   +1 more source

Conversion of a Semi-two Lanes Roundabout into a Turbo-roundabout: A Performance Comparison

Procedia Computer Science, 2016
AbstractIn the last years, as regards the functional design of at-grade intersections, near to classic layouts (signal-controlled junctions, roundabouts, etc.) a new solution has born: the “turbo-roundabout”. It is a canalized multilane oval intersection with a non-traversable or partially traversable center island and with a spiral circulatory ...
Vincenzo Gallelli, Teresa Iuele, Rosolino Vaiana   +2 more
openaire   +2 more sources

Green Transportation Planning for Smart Cities: Digital Twins and Real-Time Traffic Optimization in Urban Mobility Networks

Applied Sciences
This paper proposes a comprehensive framework for integrating Digital Twins (DT) with real-time traffic optimization systems to enhance urban mobility management in Smart Cities.
Marek Lis, Maksymilian Mądziel
doaj   +1 more source