Claim Missing Document
Check
Articles

Found 3 Documents
Search
Journal : International Journal on Advanced Technology, Engineering, and Information System (IJATEIS)

Identification of Variables Affecting the Number of Traffic Accident Casualties (Intersections (4 and T) in Yogyakarta) Dewi, Ari Tri Kusuma; Siregar, Martha Leni; Soehodho, Sutanto
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 2 (2025): MAY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i2.1809

Abstract

Yogyakarta has recorded a relatively high rate of traffic accidents, with a consistent trend throughout 2024. This condition is influenced by high traffic density, a consequence of increased activity in the education, tourism, and economic sectors, despite the implementation of various mitigation efforts. The aim of this study is to identify the variables that potentially influence the number of traffic accident casualties at (4 and T) intersections in Yogyakarta. The study utilized initial data collection through CCTV recordings at accident locations, data from the Integrated Road Safety Management System (IRSMS), Google Street View observations, and multiple linear regression analysis combined with variable reduction based on Variance Inflation Factor (VIF) values. The results indicate that eight variables significantly influence the number of traffic accident casualties in Yogyakarta. However, limited Smart City CCTV coverage restricts comprehensive analysis. Future research requires expanded intersection monitoring and extended study scope to enhance validity and representation.
The Influence of Road Geometry on the Number of Accidents at Curves: A Study on the Variability of Hilliness and Bendiness Putri, Atissa Dwi; Siregar, Martha Leni; Soehodho, Sutanto
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 2 (2025): MAY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i2.1816

Abstract

This study examined the influence of roadway geometry on traffic safety, focusing on the effects of hilliness and bendiness along a 9.28 km road segment in West Sumatra, Indonesia. Geometric data, including elevation and curvature, were collected using the GeoTracker application and processed with a Python-based sliding window segmentation of 1 km length and 50% overlap, resulting in 19 analysis segments. Traffic accident data were obtained from official police reports and included the number of crashes, minor injuries, serious injuries, and fatalities for each segment. Multivariate Analysis of Variance (MANOVA) was performed to evaluate the simultaneous effects of hilliness and bendiness on the crash variables. The results showed that hilliness significantly influenced the total number of accidents, while bendiness significantly affected the occurrence of serious injuries. Hilliness explained approximately 80% of the variance in accident frequency, and bendiness contributed substantially to variations in serious injuries. Although neither hilliness nor bendiness showed significant effects on minor injuries and fatalities, both factors exhibited positive trends in relation to increasing crash severity. The findings demonstrated that vertical elevation changes and horizontal curvature contributed significantly to traffic accident risks. The study suggested that incorporating these geometric parameters into road design, safety assessments, and targeted interventions could help reduce accident occurrences, particularly in mountainous and curvilinear roadway segments.
Analysis of the Costs of Traffic Accidents in the City of Dili, Timor-Leste Guterres, Joao Antonio; Kusuma, Andyka; Siregar, Martha Leni
INTERNATIONAL JOURNAL ON ADVANCED TECHNOLOGY, ENGINEERING, AND INFORMATION SYSTEM Vol. 4 No. 2 (2025): MAY
Publisher : Transpublika Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55047/ijateis.v4i2.1837

Abstract

The Value of Statistical Life (VSL) of residents in Dili City, Timor-Leste is examined in this research using the Willingness to Pay (WTP) method to determine how the public values reducing the risk of fatal traffic accidents. Data collection involved conducting structured face-to-face interviews in various offices and schools. Each respondent was presented with three hypothetical traffic safety programs offering risk reductions of 20%, 50%, and 65%. The associated WTP amounts were USD 12, USD 15, and USD 20, respectively. VSL was computed by dividing WTP by the corresponding percentage of risk reduction. The data were further analyzed using a binary logistic regression model, executed in R Studio software, to estimate the probability of WTP based on socioeconomic variables such as gender, age, education level, occupation, income, and cost of the proposed intervention. The regression results demonstrated a statistically significant and negative relationship between the program’s cost and the willingness to pay, indicating that greater expenses lowered public acceptance. The average individual VSL was calculated at USD 524.83 for female respondents and USD 398.07 for males. Using official records of 102 traffic-related fatalities in Dili during the 2022–2024 period, the Social Value of Statistical Life (SVSL) was estimated at USD 17,830.70 for females and USD 13,524.02 for males. Based on these findings, six policy recommendations are proposed: improved road infrastructure, strengthened law enforcement, public safety education, clearer traffic signage, adequate street lighting, and enhanced pedestrian protection.