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Topic Review
Hybrid Electric Vehicles
According to the Society of Automotive Engineers, a hybrid vehicle can be defined as that vehicle with two or more energy storage systems which must provide power to the propellant system either together or independently. Similarly, the heavy duty hybrid vehicles group indicates that a hybrid vehicle must have at least two energy storage systems and energy converters. In practice, a hybrid electric vehicle (HEV) combines the great autonomy of conventional vehicles with spark ignition engines, compression ignition engines, fuel cells and solar panels with the speed, performance and environmental advantages of electric vehicles, obtaining an automobile with lower fossil fuel consumption and lower pollutant emissions to the atmosphere.
  • 2.4K
  • 10 Aug 2021
Topic Review
Traffic Flow Prediction
The accurate and effective prediction of the traffic flow of vehicles plays a significant role in the construction and planning of signalized road intersections. The application of artificially intelligent predictive models in the prediction of the performance of traffic flow has yielded positive results. However, much uncertainty still exists in the determination of which artificial intelligence methods effectively resolve traffic congestion issues, especially from the perspective of the traffic flow of vehicles at a four-way signalized road intersection.
  • 2.3K
  • 23 Jun 2025
Topic Review
Electric Cars in Brazil
Brazil has been successful to reduce its carbon footprint using biofuels, but it is facing a dilemma in vehicle electrification. It cannot shift abruptly to battery electric vehicles, as current consumers are unable to afford them and investment in recharging infrastructure is uncertain. However, it has a significant manufacturing base, and it cannot isolate itself from global industrial trends. The emergence of a dominant design (set of core technologies defining a product category and adopted by the majority of players in the market) in small and affordable segments is essential for the diffusion of electric cars in developing countries. Biofuel hybrid technologies may support the transition. The Brazilian industry can engage in electric vehicle development by designing small cars based on global architectures, targeting consumers in emerging markets. 
  • 2.3K
  • 22 Jun 2025
Topic Review
Automatic Wheelchairs
Automatic wheelchairs refers to devices equipped with wheelchairs, which can move automatically. Automatic wheelchairs have evolved in terms of instrumentation and control, improving the mobility of people with physical disabilities. The different wheelchair control techniques are divided into two categories: sensor technology non-invasively placed on the user and wheelchair instrumentation.
  • 2.3K
  • 26 Nov 2020
Topic Review
Time-of-day Traffic Signal Control
Improperly scheduled signal timing plans are one of the main reasons for reduced efficiency of traffic signals at coordinated urban arterials. Time-of-day (TOD) traffic signal control is based on the principle where multiple TOD signal timing plans (STPs) are scheduled to operate during the day. TOD plans are characterized by a unique cycle length that is highly correlated with traffic volumes. The determination of characteristic periods during the day where certain signal timing plans should operate was primarily done using the 24 h volume plots from single intersection and engineering judgments. In cases where data availability is higher, the analytical methods that serve for the determination of robust TOD breakpoints were not in place.
  • 2.2K
  • 27 Jun 2022
Topic Review
List of Maglev Train Proposals
This is a list of proposed maglev trains worldwide. Some proposals may have been rejected.
  • 2.1K
  • 27 Oct 2022
Topic Review
City Cargo Transportation by Trams
A city’s transport and distribution system requires the effective organization of urban freight deliveries that take into consideration the economic, ecological, and social impact. Implementation of the concept of green logistics necessitates the use of environmentally friendly and energy-efficient modes of transport, which consider the existing infrastructure and the possibility of its development.
  • 2.1K
  • 26 Jul 2023
Topic Review
Opto-physiological monitoring
Opto-physiological monitoring (OPM) considers biological tissue  as a set of optical media, study how light interacts within biological tissue, where the optical properties of the latter reflect the mechanical, physical and biochemical functions of the living organism. OPM includes optoelectronic sensor based contact monitoring and image sensor based remote monitoring.
  • 2.1K
  • 27 Oct 2020
Topic Review
Driving Cycles for Estimating Vehicle Emission Levels
Standard driving cycles (DCs) and real driving emissions (RDE) legislation developed by the European Commission contains significant gaps with regard to quantifying local area vehicle emission levels and fuel consumption (FC). The aim of this paper was to review local DCs for estimating emission levels and FC under laboratory and real-world conditions. This review article has three sections.
  • 2.0K
  • 12 Nov 2021
Topic Review
Mobility Apps for Improving Urban Travel Patterns
In recent decades cities have applied a number of policy measures aimed at reducing car use and increasing public transportation (PT) patronage. Persuasive strategies to change mobility behavior present notable limitations in economic and logistical terms and have only minor impacts. The smartphone has emerged as a promising tool to overcome these challenges, as it can host persuasion strategies through mobility apps. Simultaneously, Mobility-as-a-Service (MaaS) schemes could open up new possibilities for addressing both sustainability goals and the needs of urban travelers.
  • 2.0K
  • 25 Jan 2022
Topic Review
Cycling Education in Europe
Owing to the active promotion of environmentally friendly lifestyles in several European nations, the bicycle is progressively emerging as a predominant mode of transportation on the roadways. This phenomenon can be attributed to a plethora of factors. Numerous cities are gradually prioritizing the development of sustainable transportation systems, which includes restricting car access to central areas. Moreover, there is a growing ecological awareness among individuals who are averse to contributing to urban pollution with vehicle emissions. Additionally, the bicycle offers a means of travel that enables users to maintain and enhance their physical health and overall well-being.
  • 1.9K
  • 11 Oct 2023
Topic Review
Evolution of Intelligent Vehicle Technology
The time evolution of intelligent vehicle technology is explained, which highlights the development of an intelligentvehicle and its safety applications, focusing on the various usages of perception sensors in production.
  • 1.9K
  • 25 Nov 2020
Topic Review
Rural Logistic Facilities
Transport has long been considered a concern for rural residents around the world. Rural express logistics, one of the transport topics, is associated with rural residents’ convenience as well as e-commerce development. As key nodes in the network, logistic centers need to be properly located to improve the delivery efficiency. In general, existing studies on rural logistics are mostly conducted qualitatively. Most studies focus on policy suggestions on the development of rural e-commerce, while geographic, economic, and population data are not exploited enough. Although some issues such as route design and rural e-commerce are getting attention, there are still very few studies on site selection of rural logistic centers. Much uncertainty still exists about balancing the coverage rates with the operational cost when evaluating the optimal locations for logistic centers in remote rural areas with low population density. Quantitative methods are urgently needed for solving the logistic center locating problem, especially in areas at the early stages of building a rural logistic network.
  • 1.9K
  • 23 May 2022
Topic Review
Public Electric Vehicle Charging Infrastructures Planning and Operation
Planning public electric vehicle (EV) charging infrastructure has gradually become a key factor in the electrification of mobility and decarbonization of the transport sector. In order to achieve a high level of electrification in mobility, different studies have been presented, proposing novel practices and methodologies for the planning and operation of electric vehicles charging infrastructure. 
  • 1.8K
  • 19 Sep 2023
Topic Review
Virtual Coupling in Railways
The mobility situation is constantly changing as people are increasingly moving to urban areas. Therefore, a flexible mode of transport with high-capacity passenger trains and a high degree of modularity in the trains’ composition is necessary. Virtual coupling (VC) is a promising solution to this problem because it significantly increases the capacity of a line and provides a more flexible mode of operation than conventional signaling systems.
  • 1.8K
  • 29 May 2023
Topic Review
Urban Archetypes
To make cities more sustainable and livable and to achieve climate targets in transportation, cities around the globe must undergo sustainable transformations. However, disparities in initial conditions pose challenges when trying to implement these sustainable changes. Identifying these differences aids in the comprehension of future developments. Urban archetypes represent a typification of cities in order to investigate mobility-related homogeneity between cities.
  • 1.8K
  • 27 Nov 2023
Topic Review
Road Traffic Crashes
Road traffic crashes (RTCs) are a major problem for authorities and governments worldwide. They incur losses of property, human lives, and productivity. 20 to 50 million people are injured in RTCs every year. The involvement of teenage drivers and road users is alarmingly prevalent in RTCs since traffic injuries unduly impact the working-age group (15–44 years). 
  • 1.8K
  • 01 Jul 2022
Topic Review
Chrysler Minivan (AS)
The second-generation Chrysler minivans are a series of minivans that were manufactured and marketed by Chrysler Corporation in North America and Europe from 1991 to 1995. Officially designated the AS platform by Chrysler, the second-generation minivans were again sold in passenger and cargo configurations by the Chrysler, Plymouth, and Dodge divisions. Launched in late 1990 for the 1991 model year, the second-generation minivans were an extensive revision of the first-generation chassis and body. The model range became the first minivans offered with driver-side airbags (1991) and with optional integrated child safety seats (1992). While adding all-wheel drive as an option for the first time, the AS platform would also mark the last offering of a manual transmission. As with its predecessor, Chrysler assembled second-generation minivans at Windsor Assembly in Windsor, Ontario, Canada, with additional production at Saint Louis (North) Assembly in Fenton, Missouri from 1990 to 1994. In 1992, to supplement exports from the United States, the Chrysler Voyager began production in Graz, Austria (in the Eurostar joint venture factory between Chrysler and Steyr-Daimler-Puch). For the 1996 model year, the AS-generation minivans were replaced by the NS platform, marking the first complete redesign of the Chrysler minivans since their introduction.
  • 1.8K
  • 28 Nov 2022
Topic Review
Brass Era Car
The Brass Era is an American term for the early period of automotive manufacturing, named for the prominent brass fittings used during this time for such things as lights and radiators. It is generally considered to encompass 1896 through 1915, a time when these vehicles were often referred to as horseless carriages. Elsewhere in the world this period would be considered by antique car enthusiasts to consist of the veteran (pre-1904), and Edwardian eras, although these terms are really not meaningful outside the former British Empire.
  • 1.8K
  • 25 Nov 2022
Topic Review
Design of Sustainable Flexible Pavement
The conventional methodologies for the design of flexible pavements are not adequate in providing solutions that meet the diverse sustainability challenges. Therefore, developing new methodologies and frameworks for the design of flexible pavement has become a priority for most highway agencies. On the other hand, there is no sound sustainable flexible pavement framework at the design phase that considers the key engineering performance, environmental impact, and economic benefits of sustainability metrics. Hence, premature failure of flexible pavements has become a common problem leading to a growing demand for sustainable pavement. Pavement engineers need to have access to tools that permit them to design flexible pavements capable of providing sustainable solutions under various complex scenarios and uncertainties.
  • 1.8K
  • 10 Jan 2022
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