scholarly journals Simulation-Based Public Transport Priority Tailored to Passenger Conflict Flows: A Case Study of the City of Zagreb

2021 ◽  
Vol 11 (11) ◽  
pp. 4820
Author(s):  
Luka Novačko ◽  
Karlo Babojelić ◽  
Luka Dedić ◽  
Tomislav Rožić
Keyword(s):  
Travel Time ◽  
Public Transport ◽  
Passenger Cars ◽  
Peak Period ◽  
Effective Measure ◽  
Traffic Lane ◽  
Simulation Based ◽  
Passenger Flows ◽  
The City

Prioritizing public transport is one of the most effective measure to increase the attractiveness and competitiveness of public transport in relation to individual vehicles. The main goal of this study was to examine the possibilities for reducing the travel time of tram vehicles by giving priority at signalized intersections in terms of sharing the traffic lane with personal vehicles and under conditions of strong conflict flows with private transport. For this purpose, we used the simulation tool VISSIM and its module EPICS. A methodology for determining weighting factors for prioritizing public transport flows was developed based on conflicting passenger flows in public transport vehicles and passenger cars. Three scenarios were tested in the study area: (1) “do nothing”; (2) unconditional priority; and (3) conditional priority. The results showed that unconditional priority led to unsustainable traffic conditions for personal vehicles and public transport. In contrast, conditional priority reduced the travel time of public transport on certain corridors by between 7.64% and 18.76% in the morning peak period, and 5.60% to 22.50% in the afternoon peak period.

scholarly journals Development of Fuzzy Logic Forecast Models for Location-Based Parking Finding Services

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Zhirong Chen ◽  
Jianhong (Cecilia) Xia ◽  
Buntoro Irawan
Keyword(s):  
Fuzzy Logic ◽  
Travel Time ◽  
Public Transport ◽  
Early Morning ◽  
Peak Period ◽  
Current Location ◽  
Forecast Models ◽  
Parking Demand ◽  
Peak Parking

Park-and-ride (PnR) facilities provided by Australian transport authorities have been an effective way to encourage car drivers to use public transport such as trains and buses. However, as populations grow and vehicle running costs increase, the demand for more parking spaces has escalated. Often, PnR facilities are filled to capacity by early morning and commuters resort to parking illegally in streets surrounding stations. This paper reports on the development of a location-based parking finding service for PnR users. Based on their current location, the system can inform users which is the best station to park their cars during peak period. Two criteria—parking availability and the shortest travel time—were used to evaluate the best station. Fuzzy logic forecast models were used to estimate the uncertainty of parking availability during the peak parking demand period. A prototype using these methods has been developed based on a case study of the Oats Street and Carlisle PnR facilities in Perth, Western Australia. The system has proved to be efficacious and has the potential to be applied to other parking systems.

scholarly journals Accessibility to park in Łódź in view of individual transport, public transport and cycling

2018 ◽  
Vol 2018 (2) ◽  
pp. 10-21 ◽  
Author(s):  
Marta Borowska-Stefańska ◽  
Szymon Wiśniewski
Keyword(s):  
Population Density ◽  
Travel Time ◽  
Public Transport ◽  
Small Area ◽  
Spatial Accessibility ◽  
City Center ◽  
The City

In this article, the goal was to assess spatial accessibility to the parks in Łódż for example of cycling, individual transport and public transport. Parks represent basic units of recreational greenery in the city. (Czerwieniec, Lewińska 2000). In Łódź are 43 parks, which are located mainly in the rail peripheral or right behind her (Jakóbczyk-Gryszkiewicz 2008). To determine the spatial accessibility to the parks in the analyzed city, were calculated the number and percentage of the population, which living in 2016 in isochrones: 0-5; 5-10; 10-15; 15-20; 20-25; 25-30 minutes from the parks. In the study were taken into account the different means of transport - car, bicycle and public. It was found that the most beneficial for the residents of the city is by bike. In the case of 3/4 of the population of Łódż travel time by bike to the park is less than 5 minutes. Bicycle and public transport provide access to the parks, the vast majority of inhabitants of the city in time to 5 minutes, while individual transport in time 5-10 minutes. Most preferably, due to the accessibility for the residents of the city, are located parks in the city center, and behind its borders, in turn, within the rail perimeter. Over there the population density is greatest, unfortunately, a small area of parks.

scholarly journals Informing the design of courtyard street blocks using solar energy models: a case study of a university campus in Singapore

2021 ◽  
Vol 2042 (1) ◽  
pp. 012050
Author(s):  
Ekaterina Vititneva ◽  
Zhongming Shi ◽  
Pieter Herthogs ◽  
Reinhard König ◽  
Aurel von Richthofen ◽  
...  
Keyword(s):  
Solar Energy ◽  
Urban Form ◽  
Energy Performance ◽  
University Campus ◽  
Quasi Monte Carlo ◽  
Energy Models ◽  
Simulation Based ◽  
Input Variables ◽  
The City

Abstract This study discusses the interplays between urban form and energy performance using a case study in Singapore. We investigate educational urban quarters in the tropical climate of Singapore using simulation-based parametric geometric modelling. Three input variables of urban form were examined: street network orientation, street canyon width, and building depth. In total, 280 scenarios were generated using a quasi-Monte Carlo Saltelli sampler and Grasshopper. For each scenario, the City Energy Analyst, an open-source urban building energy simulation program, calculated solar energy penetration. To assess the variables’ importance, we applied Sobol’ sensitivity analysis. Results suggest that the street width and building depth were the most influential parameters.

scholarly journals IMPACT EVALUATION OF CARBON DIOXIDE (CO2) IN BHOPAL DUE TO INCREASE IN NUMBER OF PASSENGER CARS

2019 ◽  
Vol 7 (7) ◽  
pp. 422-431
Author(s):  
Niranjan Mudliar ◽  
Paramjeet Singh
Keyword(s):  
Carbon Dioxide ◽  
Public Transport ◽  
Income Group ◽  
The Other ◽  
State Governments ◽  
Passenger Cars ◽  
Lower Income Group ◽  
The Government ◽  
Carbon Dioxide Co2 ◽  
The City

India has been progressing steadily since last two decades in terms of affordability of commodity and purchasing power of the common man. This has given rise to demand which leads to the continuous economic growth. Of course, support from the Government of India as well as various state Governments has come in the form of reforms and infrastructure funding. However this growth has also seen the disadvantage of erratic consumption by wealthy persons as compared to the economically weaker sections, for example on one side there is heavy demand of passenger cars by the higher income group who uses it sparingly but on the other side people of the lower income group who are more in numbers have to rely on public transport. This imbalance creates a wider gap between public affordability to consume a particular commodity like passenger cars. On one side there are persons who buy the latest model introduced by the manufacturer in spite of having sufficient numbers at their disposal and on the other side basic lowest level model are out of reach of some persons in the society, who rely on two-wheeler or public transport which is not reliable. This has not only created a huge gap in public expenditure but has also impact the environment. With year on year increase in number of vehicles in tier 2 cities like Bhopal, there is tremendous influence on the carbon dioxide (CO2) in and around the city. Past decade saw increase in maximum temperatures during summer rise by 3 – 4 degrees above normal in Bhopal and there is clear effect on the monsoon pattern too which has become inconsistent with rains reaching 120 mm in three days. Earlier this quantity was spread over a month. The last major season of winter is seen getting reduced to two months only from the earlier four, again with temperatures dropping suddenly below normal etc. This effect must be the result of increasing number of passenger vehicles in the city apart from other factors which also need detailed study for their influence.

scholarly journals Understanding Public Transport Ridership in Developing Countries to Promote Sustainable Urban Mobility: A Case Study of Mexicali, Mexico

2020 ◽  
Vol 12 (8) ◽  
pp. 3266 ◽  
Author(s):  
Alejandro Sánchez-Atondo ◽  
Leonel García ◽  
Julio Calderón-Ramírez ◽  
José Manuel Gutiérrez-Moreno ◽  
Alejandro Mungaray-Moctezuma
Keyword(s):  
Public Transport ◽  
Global South ◽  
Transport Systems ◽  
Limited Resources ◽  
Urban Mobility ◽  
Mobility Strategies ◽  
Sustainable Urban Mobility ◽  
Macro Variables ◽  
The City

Some small- and medium-sized Global South cities have unsustainable transport systems and no information to plan interventions in addition to having limited resources for data collection. This study proposes a method to understand Public Transport (PT) ridership in cities of these characteristics, based on previous studies and by analysing available indicators related to Manheim’s macro-variables, to identify their influence on the PT ridership. The method was applied in the city of Mexicali, Mexico. The results help to understand the causes of the low PT ridership and have implications for achieving sustainable urban mobility in the city. Findings reveal that mobility planning in Mexicali has been occurring without properly considering activity system related variables, so it is necessary to integrate urban and transport administration. Moreover, to increase PT demand in Mexicali, mobility strategies to discourage the use of private cars are necessary. The proposed method can be applied in other cities of the Global South with characteristics similar to the case study to understand the causes of PT ridership, so these can be considered by the agencies responsible for the planning of the city’s transportation system to promote a sustainable urban mobility.

Environmental and social follow-up costs of traffic in cities: A case study of the city of Augsburg differentiated by means of transport

2020 ◽  
Author(s):  
Benjamin Oebel ◽  
Dr. Tobias Gaugler
Keyword(s):  
Public Transport ◽  
Air Pollutants ◽  
Social Costs ◽  
External Costs ◽  
Environmental Costs ◽  
The Social ◽  
The Cost ◽  
The City

<p><strong>Keywords:</strong> External costs, mobility, environmental costs, social costs, monetarization</p> <p> </p> <p><strong>Purpose: </strong>This study provides a methodology to evaluate the environmental and social costs, which arise from traffic in the German city of Augsburg. Social costs are driven by air pollutants such as nitric oxides or particulate matter, causing health damages. Environmental follow-up costs are driven by the emission of greenhouse gases. Furthermore, approaches for a successful transformation towards a car-free city are shown.</p> <p><strong>Method: </strong>Based on traffic data from the Augsburg Civil Engineering Office, as well as traffic shares from the German Federal Motor Transport Authority, the average emission factors of vehicles on Augsburg´s streets and, subsequently, the total traffic emissions on municipal roads in the city are quantified. The environmental as well as the social consequences are monetarized using the cost rates by Matthey and Bünger (2019) and van Essen et al. (2019). Social costs are additionally assessed using to the DALY approach. Therefore the DALYs lost due to air pollutants are determined and costs per DALY are calculated using the willingness to pay-approach by Cropper and Khanna (2014) and Spengler (2004) additionally to a method by Daroudi et al. (2019) assessing health care expenditures.</p> <p><strong>Results:</strong> Applying this framework to the case study of Augsburg, results show, that environmental costs of 140.6 Million € arise from traffic in the city per year. These costs are entirely attributable to car traffic (77.7%), truck traffic (19.8%) and motorcycle traffic (1.9%), as public transport in Augsburg is climate neutral. Further, traffic on municipal roads in Augsburg causes a loss of 212.3 DALYs per year, which equals to annual social costs of 27.2 Million €. Cars account for 63.2% of those, trucks for 33.8%, motorcycles for 2.3% and buses for 0.2%, respectively. With a proportion of passenger kilometers of 90.4% from cars, 6.1% from motorcycles and 3.6% from buses, it is evident that cars contribute disproportionately to the environmental and social costs of Augsburg's traffic.</p> <p><strong>Conclusion:</strong> The social and economic follow-up costs of transport in the city of Augsburg are currently not borne by the polluter. Their great amount encourages measures, such as reinforcing the use of bicycles or public transport, eventually facilitating a change towards sustainable traffic in Augsburg.</p> <p> </p> <p><strong>References</strong></p> <p>Cropper, Maureen; Khanna, Shefali (2014): How Should the World Bank Estimate Air Pollution Damages? In Resources for the Future Discussion Paper, pp. 14–30.</p> <p>Daroudi, Rajabali; Faramarzi, Ahmad; Akbari Sari, Ali; Nahvijou, Azin (2019): Cost Per Daly Averted in Low, Middle and High Income Countries: Evidence from Global Burden of Disease Study to Estimate the Cost Effectiveness Thresholds. In SSRN Journal.</p> <p>Matthey, Astrid; Bünger, Björn (2019): Methodenkonvention 3.0 zur Ermittlung von Umweltkosten – Kostensätze. Edited by Umweltbundesamt. Available online at https://www.umweltbundesamt.de/sites/default/files/medien/1410/publikationen/2019-02-11_methodenkonvention-3-0_kostensaetze_korr.pdf, checked on 10/29/2020.</p> <p>Spengler, Hannes (2004): Kompensatorische Lohndifferenziale und der Wert eines statistischen Lebens in Deutschland. In Zeitschrift für ArbeitsmarktForschung-Journal for Labour Market Research 37 (3), pp. 269–305.</p> <p>van Essen, Huib; van Wijngaarden, Lisanne, Schroten, Arno; Sutter, Daniel; Bieler, Cuno; Maffii, Silvia; Brambilla, Marco et al. (2019): Handbook on the external costs of transport. Edited by CE Delft. Available online at https://ec.europa.eu/transport/sites/transport/files/studies/internalisation-handbook-isbn-978-92-79-96917-1.pdf, checked on 10/29/2020.</p>

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