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Estimating of Critical Gaps at Uncontrolled Intersections under Heterogeneous Traffic Conditions Al Bargi, Walid Abdullah; Rohani, Munzilah Md; Daniel, Basil David; Khalifaa, Nasradeen A; Masirin, Mohd Idrus Mohd; Kironde, Joel
Automotive Experiences Vol 6 No 2 (2023)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.9406

Abstract

Pedestrian crossing behavior can be studied by estimating critical gap, which is determined by analyzing accepted and rejected gaps by pedestrians. This can provide insight into safety levels at pedestrian facilities. The aim of this study is to determine critical gaps using various methods such as the Logit method, Raff's method, and Wu’s Method. These methods are then compared to identify the most appropriate one. Three locations in Malaysia were selected for data collection based on their land use, number of lanes, and carriageway width. Video cameras were used to capture mixed traffic flow and pedestrian crossing movements simultaneously at the selected sections. The results indicate that the critical gap values obtained from the three methods are highly comparable. Specifically, the Logit Method yielded a critical gap value of 8.4s, while Raff's Method and Wu's Method produced critical gap values of 7.7s and 7.12s, respectively. The study concludes that the Logit method is the most suitable for estimating critical gaps as it takes into account both pedestrian behavior and vehicular characteristics concurrently. The findings of this study have the potential to contribute to the review of design parameters for pedestrian crossing facilities, leading to the improvement of existing facilities and the enhancement of pedestrian safety.
Bibliometric analysis of research trends in rigid pavement over the last decade Mudjanarko, Sri Wiwoho; Paikun, Paikun; Daniel, Basil David
SINERGI Vol 29, No 2 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2025.2.005

Abstract

This study presents a bibliometric analysis of research trends in rigid pavement over the last decade, aiming to identify publication trends, research output distribution, main themes, citation patterns, and research gaps. The PRISMA method was employed, and statistical analysis was conducted using bibliometric software. By collecting bibliographic data from academic publications, this research reveals a significant growth in rigid pavement publications, reflecting increased global interest in this field. Major research themes include pavement design, material characterization, construction techniques, maintenance, and performance evaluation. Citation pattern analysis is used to identify influential works in this field. However, this study has limitations in data coverage and is susceptible to biases inherent in bibliometric analysis. Nevertheless, it contributes significantly to understanding the research landscape of rigid pavement, providing valuable insights for researchers, practitioners, and policymakers. Future research could deepen qualitative analysis, track the evolution of research themes, and explore interdisciplinary frameworks to enrich our understanding of rigid pavements.
MRT in Surabaya without Land Acquisition by Utilizing the River Routes and the Existing Single Track Railroad Gunawan; Daniel, Basil David; Caroline, Jenny
International Journal of Architecture and Urbanism Vol. 9 No. 3 (2025): International Journal of Architecture and Urbanism
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/ijau.v9i3.23587

Abstract

Traffic congestion that occur between the city of Surabaya and the surrounding buffer cities which are 30 to 50 kilometers away are caused by the increasing use of private vehicles and the decreasing use of public transportation because it is considered that the process will be complicated and travel ineffective. This will cause an imbalance between the capacity of the highway and the number of vehicles, resulting in traffic congestion, especially during peak hours. To overcome this problem, improvements are made to sustainable and community liveability in the form of optimal utilization of existing properties in the city, including rivers and existing railroad. With the background above, this paper will present the idea of a solution to overcome traffic congestion by utilizing the drainage channel or rivers and the single tracks railroad to become MRT lanes. This transportation system innovation will be proposed as an evaluation of the Indonesian Railroad Master Plan (2018 to 2030), specifically to be implemented in the city of Surabaya and surrounding.