RT Journal Article
SR Electronic
A1 Rymarz, Joanna
A1 Borucka, Anna
A1 Niewczas, Andrzej
T1 Evaluation of Impact of the Operational and Technical Factors on Downtime of Municipal Buses Based on a Linear Regression Model
JF Communications - Scientific Letters of the University of Zilina
YR 2021
VO 23
IS 4
SP A241
OP A247
DO 10.26552/com.C.2021.4.A241-A247
UL https://komunikacie.uniza.sk/artkey/csl-202104-0013.php
AB The objective of this study was to assess the effect of selected operational and technical factors on downtime of vehicles. The sample consisted of buses from a municipal transport company (Poland). Estimation of parameters of a linear regression model was performed. Month of failure (downtime event) and its type were used as predictors. Failures were divided into three categories: events related to the company´s operations, including vehicle failures (1) and other (organizational) problems (2), as well as failures caused by external factors unrelated to the operations of the transport company (3). The downtime was found to be significantly associated with failure type and month of failure. A linear regression model of downtime with a reduced number of impact factors, taking into account two main failure types and two main periods of their occurrence during the year, was developed.