The Effect of Pickup Truck Age on Roadworthiness Test Pass Rates at the Bantul Regency Vehicle Inspection Unit

Abstract

Motor vehicles play a vital role in supporting community activities. As vehicles age,
the performance of their engines and other technical components may decline, potentially
affecting driving safety. Therefore, the government conducts routine vehicle inspections to
ensure that vehicles meet technical and roadworthiness requirements. This study aims to
analyze the effect of vehicle age on roadworthiness test results, identify testing parameters
that frequently cause vehicles to fail the test, and analyze the factors leading to vehicles
passing or failing the test. The study employs three approaches: binary logistic regression
analysis to examine the effect of vehicle age on test status, quantitative descriptive statistical
analysis to determine the distribution of passing and failing test results through data tables and
graphs, and a qualitative descriptive analysis approach to identify other factors causing
vehicles to pass or fail the test through field observations and interviews at the UPTD PKB of
Bantul Regency from February to April 2026. The sample consisted of 92 vehicles,
determined using the Slovin formula with a 10% margin of error from the population of pickup
trucks required to undergo testing, which totaled 1,188 during that period of February–April
2026. The research results indicate a significant influence between vehicle age and passing
the roadworthiness test. Among vehicles less than 10 years old, 40 passed the test and 6 failed.
Conversely, among vehicles over 10 years old, 42 failed the test and only 4 passed. These
results indicate that vehicle age affects roadworthiness test pass rates, although other factors
also play a role, such as vehicle maintenance, type and load of cargo, road conditions, driving
style, examiner factors, and vehicle usage intensity. It is hoped that this study can provide
insight into the relationship between vehicle age and roadworthiness levels, thereby increasing
public awareness of the importance of maintaining vehicle condition. According to the
research data, the highest failure rate was found in the brake tester at 52.18% due to high
vehicle usage intensity