scholarly journals Operational Evaluation of a Throughabout to Give Priority to Public Transport at Standard Roundabouts

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Sajjad Zakeri ◽  
Abdoul-Ahad Choupani
Keyword(s):  
Public Transport ◽  
Low Cost ◽  
Travel Speed ◽  
Public And Private ◽  
Bus Transit ◽  
Unsignalized Intersections ◽  
Central Business Districts ◽  
Private And Public ◽  
Central Island ◽  
To Receive

The presence of roundabouts in the central business districts (CBD) of cities can reduce the travel speed of bus rapid transit (BRT) along the radial routes. A throughabout is an unconventional and low-cost design in which the central island is split to provide exclusive lanes for major traffic streams. Although the operation of throughabout has been limitedly investigated for private transport, it has been less considered by designers for public transport and for increasing the speed of the BRT system. The current study aims to evaluate the effects of throughabouts on private and public transports and to compare the design with standard roundabouts and conventional intersections. The calibrated and validated results of the microsimulation tool (AIMSUN) indicated that the throughabout improved the travel time of both public and private transports through better use of the space and kept the traffic flowing at all volume levels. The travel speed of the BRT in the throughabout was remarkably stable in both signal-controlled and unsignalized intersections. The standard roundabout was the second-best design. The throughabout can be very helpful in corridors along which the demand for the bus transit is high and the system needs to receive priority.

The Involvement of the Private Sector to Ensure Sustainability of Systems

2010 ◽  
Vol 5 (4) ◽  
Author(s):  
S. Henschel
Keyword(s):  
Rural Areas ◽  
Positive Impact ◽  
Low Cost ◽  
Lao Pdr ◽  
Local Communities ◽  
Infrastructure Development ◽  
Public And Private ◽  
Hydro Power ◽  
Private And Public ◽  
The Government

The need to enhance electricity access in rural areas of developing countries is universally recognized. However, tremendous challenges remain to finance electrification initiatives, to ensure the long term sustainability of rural electricity systems. In Lao PDR, one of the targets the government sets to achieve is the provision of electricity to 90% of the households by 2020. Considering the topography of the country and the low density of population, this ambitious objective can be reached only if innovative financing and operating mechanisms are developed and if private and public investors work closely together. A strategy based purely on government funded grid extension will not lead to the achievement of the objective. Exploring small hydro-power generation and the operation of village grids, energy provider Sunlabob has developed an innovative private-public partnership aimed at producing clean, reliable and affordable electricity in remote areas, empowering local communities, and promoting the use of electricity for productive and social purposes. The innovative features of this partnership include, mutual leverage of public and private funds for infrastructure development, community ownership and management of the fixed structures of the mini-grid (small dam, power house, transmission poles and lines), a combination of different efficient and reliable modern renewable energy technologies privately installed and owned which provide electricity 24/7 at low cost, training of local technicians who become energy entrepreneurs, empowerment of local communities for management and decision making as well as participatory work with local communities to identify productive and social uses of electricity. Both private and public partners have clearly defined roles and responsibilities. Linking affordable electricity generation on the one hand and development of productive and social activities on the other hand is a new approach which is needed to ensure the viability of the mini-grid and to maximize the positive impact on the socio-economic development of target villages.

scholarly journals Influence of the Parameters of the Bus Lane and the Bus Stop on the Delays of Private and Public Transport

2020 ◽  
Vol 12 (22) ◽  
pp. 9593
Author(s):  
Fadyushin Alexey ◽  
Zakharov Dmitrii
Keyword(s):  
Public Transport ◽  
Delay Time ◽  
Field Research ◽  
Transport Infrastructure ◽  
Total Delay ◽  
Public And Private ◽  
Bus Stop ◽  
Private And Public ◽  
Bus Lane ◽  
Microscopic Modeling

The article deals with the influence of the infrastructure for public transport on the delay time of private and public transport in the city. The study employed the methods of simulation, mathematical modeling and field research. Imitation microscopic modeling determined the parameters of mathematical models of the delay time of private and public transport for various parameters of the bus lane, the length of the bus stop loading area, and its distance from the signalized intersection. Calculations determined the total delay time, taking into account the number of passengers in public and private transport on the section of the main street of regulated traffic. Determining the optimum parameters of the public transport infrastructure requires considering not only public transport passengers, but also drivers and passengers of private vehicles. Over-improving parameters of the bus lane has no effect on public transport, but traffic parameters for all other road users degrade. At high traffic intensity, the dependences of the total delay time on the length of the marking lines 1.11 and 1.5 are described by the parabola equation. The values for a road with three lanes have been determined, marking lines 1.11 and 1.5 at which the total delay time is minimal. For a highway with a high intensity, minimum bus stop parameters lead to significant increases in delay time.

scholarly journals Impact of route vehicles` lane parameters on the delay time of individual and public transport

2021 ◽  
Vol 18 (1) ◽  
pp. 169-177
Author(s):  
A. A Fadyushin ◽  
◽  
D. A. Zakharov ◽  
Keyword(s):  
Public Transport ◽  
Delay Time ◽  
Transport Infrastructure ◽  
Total Delay ◽  
Public And Private ◽  
The Public ◽  
Optimum Parameters ◽  
Private And Public ◽  
Microscopic Modeling ◽  
The City

The article deals with the influence of the public transport infrastructure during the delay periods of private and public transport in the city conditions. The following methods were used in the study: simulation, mathematical modeling, on-site research. As a result of imitation microscopic modeling, there have been determined the parameters of mathematical models of the delay time of private and public transport for various parameters of the route vehicles` lane. Calculations determined the total delay time, taking into account the number of passengers in public and private transport on the section of the main street with regulated traffic. In determining the optimum parameters of the public transport infrastructure, it is necessary to take into account not only public transport passengers, but also drivers and passengers of private vehicles.

scholarly journals Inter-Sector Partnership in Tabletop Exercises: A Low-Cost but Effective Approach to Increase Hospital Preparedness

2020 ◽  
Author(s):  
Fahimeh Barghi Shirazi ◽  
Shandiz Moslehi ◽  
Seyedeh Samaneh Miresmaeili
Keyword(s):  
Private Sector ◽  
Low Cost ◽  
Training Level ◽  
Medical Sciences ◽  
Continuous Training ◽  
Public And Private ◽  
Hospital Preparedness ◽  
Private And Public ◽  
Public And Private Sector

Performing exercises is of utmost importance for hospital preparedness. Tabletop exercises are more straightforward and less expensive comparing to operation-based exercises. Iran University of Medical Sciences, using public and private sector partnerships in the field of health, held a joint tabletop exercise. This exercise aimed to enhance the ability to respond efficiently to disasters. Findings of this study revealed that not only performing continuous training and partnership through both public and private sectors is essential for hospitals’ preparedness, but also promoting the training level can provide a ground for integration and trust among all private and public centers. Consequently, these endeavors can be beneficial in preparing for disasters and emergencies. This article aims to describe the experience of holding a joint tabletop exercise.

scholarly journals Webcare via openbare en privé sociale media

2019 ◽  
Vol 41 (2) ◽  
pp. 391-418
Author(s):  
Daphne D. Hachmang ◽  
Renée van Os ◽  
Mustafa Akpinar ◽  
Els van der Pool
Keyword(s):  
Social Networks ◽  
Social Media ◽  
Public Transport ◽  
Public And Private ◽  
Corpus Study ◽  
Human Voice ◽  
Private And Public ◽  
Sociale Media ◽  
Media Channels ◽  
Positive Effect

Abstract Webcare via public and private social media. A corpus study on the effect of Conversational Human Voice in the PT sectorThis study investigates the use of Conversational Human Voice (CHV) by a Dutch Public Transport (PT) operator in reactive webcare conversations with travelers on private and public social media channels and the effect of this use on the traveler’s sentiment during the conversation. In this study, CHV is unraveled into eight aspects. 244 conversations were analyzed, selected from the PT-operator’s public and private social media channels. Messages sent by the PT companies were coded for CHV; messages of travelers were coded for sentiment. The aspects organization responds as an individual and informal language were used the most often by the PT operator. Use of CHV is similar on private social networks and public social networks, with the exception of organization responds as an individual (used more on private social networks) and language to compensate the lack of non-verbal communication (used more on public social networks). Furthermore, results show that the use of sympathy has a positive effect on the traveler’s sentiment.

Clinical trials — the personal perspective of the research physician?

2020 ◽  
Vol 75 (3) ◽  
pp. 256-263
Author(s):  
Maria Y. Egorova ◽  
Irina A. Shuvalova ◽  
Olga I. Zvonareva ◽  
Igor D. Pimenov ◽  
Olga S. Kobyakova ◽  
...  
Keyword(s):  
Clinical Trials ◽  
Medical Care ◽  
New Technologies ◽  
Healthcare Providers ◽  
Study Drug ◽  
Well Being ◽  
Personal Perspective ◽  
Public And Private ◽  
Factors Affecting ◽  
To Receive

Background. The organization of clinical trials (CTs) requires the participation and coordination of healthcare providers, patients, public and private parties. Obstacles to the participation of any of these groups pose a risk of lowering the potential for the implementation of CTs. Researchers are a key human resource in conducting of CT. Their motivation for participation can have a significant impact on the recruitment and retention of patients, on the quality of the data collected, which determines the overall outcome of the study. Aims to assess the factors affecting the inclusion of Russian physicians-researchers in CT, and to determine their role in relations with patients-participants. Materials and methods. The study was organized as a part of the Russian multicenter face-to-face study. A survey was conducted of researchers from 10 cities of Russia (20172018). The participation in the survey for doctors was anonymous and voluntary. Results. The study involved 78 respondents. Most research doctors highly value the importance of research for science (4,84 0,39), society (4,67 0,46) and slightly lower for participating patients (4,44 0,61). The expectations of medical researchers are related to improving their financial situation and attaining new experience (n = 14; 18,18%). However, the opportunity to work with new technologies of treatment and diagnosis (n = 41; 52,56%) acted as a motivating factor. According to the questionnaire, the vast majority of research doctors (n = 29; 37,18%) believe that the main reason for patients to participate in CT is to receive quality and free medical care. The most significant obstacle to the inclusion of participants in CT was the side effects of the study drug (n = 38; 48,71%). Conclusions. The potential of clinical researchers in Russia is very high. The patient-participant acts for the research doctor as the subject of the study, and not the object, so the well-being of the patient is not indifferent to the doctor. However, the features of the functioning of our health care system form the motivation of doctors-researchers (additional earnings, professional self-development) and the way they perceive the motivation of patients (CT as an opportunity to receive quality medical care).

Urban Transport

2018 ◽  
Author(s):  
José van
Keyword(s):  
Urban Areas ◽  
Urban Transport ◽  
Transport Sector ◽  
Public And Private ◽  
Transport Services ◽  
Ride Sharing ◽  
The World ◽  
Private And Public ◽  
Selection Mechanisms

Platformization affects the entire urban transport sector, effectively blurring the division between private and public transport modalities; existing public–private arrangements have started to shift as a result. This chapter analyzes and discusses the emergence of a platform ecology for urban transport, focusing on two central public values: the quality of urban transport and the organization of labor and workers’ rights. Using the prism of platform mechanisms, it analyzes how the sector of urban transport is changing societal organization in various urban areas across the world. Datafication has allowed numerous new actors to offer their bike-, car-, or ride-sharing services online; selection mechanisms help match old and new complementors with passengers. Similarly, new connective platforms are emerging, most prominently transport network companies such as Uber and Lyft that offer public and private transport options, as well as new platforms offering integrated transport services, often referred to as “mobility as a service.”

Private Education

1986 ◽  
Keyword(s):  
Public Education ◽  
Division Of Labor ◽  
Private Education ◽  
Point Of View ◽  
The Other ◽  
Public And Private ◽  
Non Profit ◽  
Or Groups ◽  
Private And Public ◽  
The Relationship

This book focuses on the relationship between private and public education in a comparative context. The contributors emphasize the relationship between private choices and public policy as they affect the division of labor between public and private non-profit schools, colleges, and universities. Their essays examine the kinds of choices offered by each sector, as well as the effects of present and proposed public policies on the intersectoral division of labor. Written from neither a pro-private nor a pro-public point of view, the contributors point to the ways in which they believe one sector or the other may be preferable for certain goals or groups.

The Costs and Benefits of Shareholder Democracy: Gadflies and Low-Cost Activism

2020 ◽  
Author(s):  
Nickolay Gantchev ◽  
Mariassunta Giannetti
Keyword(s):  
Low Cost ◽  
Shareholder Value ◽  
Career Concerns ◽  
Costs And Benefits ◽  
Cross Sectional ◽  
Shareholder Proposals ◽  
Active Individual ◽  
Shareholder Democracy ◽  
To Receive

Abstract We show that there is cross-sectional variation in the quality of shareholder proposals. On average, proposals submitted by the most active individual sponsors are less likely to receive majority support, but they occasionally pass if shareholders mistakenly support them and may even be implemented due to directors’ career concerns. While gadfly proposals destroy shareholder value if they pass, shareholder proposals on average are value enhancing in firms with more informed shareholders. We conclude that more informed voting could increase the benefits associated with shareholder proposals.

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