Diesel in the City Center Challenges for the Engine of the Future

MTZ worldwide ◽  
2018 ◽  
Vol 80 (1) ◽  
pp. 10-15
Author(s):  
Marc Ziegler
Keyword(s):  
2011 ◽  
Vol 9 (3) ◽  
pp. 455-462 ◽  
Author(s):  
Jelena Velev ◽  
Petar Mitkovic ◽  
Ljiljana Vasilevska

Goal of this paper is to point to the ambivalent influence of transition process on the urban environments. The phenomenon of "transition" is defined as complex, multilayered process followed by new market and social principles. By observing the chronological order of changes which occurred in the city morphology, it gives recommendations for overcoming the city center identity crisis as the most significant pubic city space. Through definition and reconsideration of spatial and functional structure of the city center in the context of modern influences of the transition process, this paper emphasizes the elements which could be input in a direct or indirect way into the future strategies and plans. Accordingly, it proposes a set of measures for possible redefinition of the existing concept of the city centers and its adaptation to the demands of the time ahead.


2021 ◽  
Author(s):  
Arjan Willemse ◽  
Alberto Martilli ◽  
Bert Heusinkveld ◽  
Oscar Hartogensis ◽  
Gert-Jan Steeneveld

<p>With increasing urbanization and ongoing climate change there is a need to develop and evaluate modelling infrastructure for urban weather and climate. In this study we evaluate three urban canopy models for a heat-wave case study in Amsterdam (The Netherlands), notably the single-layer urban canopy model (SLUCM) and the building environment parameterization (BEP) and the BEP+BEM (BEP+Building Energy model) urban canopy models within the WRF infrastructure. Model results are evaluated against a network of near surface observations of air temperature, turbulent surface fluxes, SODAR wind profiles, and radio soundings of temperature and humidity taken in the city center of Amsterdam.</p><p>We find that the BEP+BEM model outperforms the other schemes for the near surface air temperature, with a bias of -0.66 K for BEP+BEM, -1.51 K for BEP and-1.56 K for SLUCM. However, WRF produces an elevated inversion level that, at the same time, is substantially (~ 2-8 K) weaker than observed in the radiosoundings.</p><p>To estimate the future increase in energy demand by air conditioning, we project this heatwave case study to the future. To do so, we force the WRF model with increased temperatures in initial and boundary conditions following the four KNMI climate scenarios. With the climate scenario with the largest warming (WH-scenario) we find a 2-m temperature increase of ~3 K during daytime compared to the current climate. Finally we find that for this scenario the energy consumption by air-conditioning increases between 25% and 40% in the city center compared to the current climate (with constant number of airco’s installed).</p>


2018 ◽  
Vol 10 (3) ◽  
pp. 223-238
Author(s):  
Denis Ambruš

The main problem with urban planning of Belgrade's historical city centre lies within the area of the Terazije terrace, which has over the years changed its appearance. Architect Nikola Dobrović laid down its foundations in 1929 in his entry to an international competition. It is precisely this concept which paved the way for the area to be expanded as needed, and gradually to reach the Sava riverbank. Two types of construction would need to take precedence in order for Savska padina to have the uniqueness of the space and better view at Savska padina. The first type of construction is defined by horizontal texture of terraces and esplanades and the second with clusters of buildings and mega-structures concentrated in one zone only. In this way the right balance between the historical centre and the Sava riverbank would be struck, with the focus on Terazije and the Sava amphitheater and the future gravitation towards the Terazije terrace serving as the driving force of the city centre's development. In this scenario, the existing "barrier" between the development and integration is recognised as an instrument of urban planning. Regulating the area around the Terazije terrace as a model for the development of the city centre would in the best way contribute to its concretization and set a good example of spatial organisation, respecting the identity and the context of the city center.


Author(s):  
Jamiatul Hamidah ◽  
Sri Normuliati ◽  
Istiqamah Istiqamah

This community service aims to improve the knowledge and skills of storytelling for teachers and parents of PAUD students in Pulantan Village, Aluh-Aluh sub-district. This dedication was held on Thursday, March 22, 2018, in PAUD Makanatut Talibin. The target of this activity is PAUD teachers and student parents/guardians. The reason for choosing this school is because the schools are classified as far from the city center and include the villages built by the PKH program. The method used in the implementation is by presentation/lecture and storytelling simulation/training. After this activity was carried out, it was concluded that storytelling had not become a habit and approach to the formation of children's character both by teachers and parents. This is because teachers and parents have very little ability in storytelling. Therefore, in the future, it is hoped that further training will be carried out by involving more teachers and parents and bringing in speakers who are more competent in storytelling such as Mother Enik Mintarsih, a storyteller from South Kalimantan.


2003 ◽  
Vol 45 (First Serie (1) ◽  
pp. 128-156 ◽  
Author(s):  
Iain Docherty ◽  
David Begg

2012 ◽  
Vol 42 (2) ◽  
pp. 439-455 ◽  
Author(s):  
Saburo SAITO ◽  
Tran Ngoc HUY ◽  
Masakuni IWAMI ◽  
Takahiro SATO ◽  
Kosuke YAMASHIRO ◽  
...  

Author(s):  
Omar S. Asfour ◽  
Samar Abu Ghali

City centers worldwide are perceived as essential parts of the city, where city memories are preserved and its identity is expressed. They are planned to satisfy the functional requirements and pleasurable qualities of the city. Under the accelerating urbanization of the modern city, several challenges face these centers including demographic, economic, and environmental challenges. This requires a continuous and incremental urban development process based on clear strategy and action plans. Thus, this study focuses on urban development strategies of city centers, with a focus on Rafah city located in the Gaza Strip, Palestinian Territories. The geographic location of this city near the Palestinian-Egyptian borders makes it a promising commercial city at local and regional levels. Thus, the current situation of Rafah city center has been analyzed, and several development strategies have been proposed. This has been done through a field survey based on observation and a questionnaire directed to city center users. It has been found that there is a great potential of Rafah city center to be developed as a commercial center. In this regard, several strategies and required actions have been proposed in the fields of transportation, environmental quality, shopping activities, investment opportunities, and visual perception.


2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Erfan Karyadiputra ◽  
Galih Mahalisa ◽  
Abdurrahman Sidik ◽  
Muhammad Rais Wathani

The problems faced by the children of Banjarmasin Al-Ashr Orphanage are almost the same as those faced by other orphanages in the city of Banjarmasin, namely, lack funds and personnel or volunteers who help and guide orphanage children to develop their skills and creativity as a provision in carrying out life after the completion of the orphanage. The purpose of this community service program is to make the children of the Al-Ashr Orphanage have a strong and more independent motivation by providing them with the knowledge and skills they will use to prepare themselves for the future. While the target of this activity is to make the children of the Al-Ashr Orphanage have design skills in making invitations, brochures, and banners as well as online businesses. The method used is training and guidance, where training is carried out with presentations and practices.


Author(s):  
Baxter Shandobil ◽  
Ty Lazarchik ◽  
Kelly Clifton

There is increasing evidence that ridehailing and other private-for-hire (PfH) services such as taxis and limousines are diverting trips from transit services. One question that arises is where and when PfH services are filling gaps in transit services and where they are competing with transit services that are publicly subsidized. Using weekday trip-level information for trips originating in or destined for the city center of Portland, OR from PfH transportation services (taxis, transportation network companies, limousines) and transit trip data collected from OpenTripPlanner, this study investigated the temporal and spatial differences in travel durations between actual PfH trips and comparable transit trips (the same origin–destination and time of day). This paper contributes to this question and to a growing body of research about the use of ridehailing and other on-demand services. Specifically, it provides a spatial and temporal analysis of the demand for PfH transportation using an actual census of trips for a given 2 week period. The comparison of trip durations of actual PfH trips to hypothetical transit trips for the same origin–destination pairs into or out of the central city gives insights for policy making around pricing and other regulatory frameworks that could be implemented in time and space.


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