In the frame of project «Criteria traffic control quality and effectiveness in Russian Federation» Transportation Laboratory ISTU was invoved into elaboration network performance appraisal. Two alternative congestion measures were considered. The ratio peak period to free flow travel times proposed as a test criterion urban highway reliability.

In order to assure the uninterrupted power supply of high speed railway, the reliability assessment of traction substation is essential at the design stage. Based on the system reliability engineering theory, a new system reliability analysis method called the GO-FLOW methodology is applied in the reliability assessment of traction substation of high speed railway. Considering failure and dynam...

The overall life of oil-immersed power transformers depends on the long-term life of the oil–paper insulation system throughout continuous operation. Studying the reliability assessment methods for oil–paper insulation can help determine the reliability level of power transformers accurately, and ensure their safe and stable operation. In the present paper, the life of oil–paper insulation is p...

Reliability as well as validity of an assessment is very important. However, reliability has been frequently overlooked in assessment for supplier selection, while validity has been treated extensively. In this paper, I propose a methodology that can evaluate the reliability of assessment. The well-known gauge R&R study is applied for the purpose. An assessor is able to easily apply the propose...

PURPOSE Public health professionals hypothesize that when community environments provide suitable walking and bicycling conditions, community members will be more active. Measurement indicators and assessment instruments are needed to evaluate suitability. This study determined the reliability and validity of two instruments to assess the suitability of sidewalks for walking and roads for bicyc...

Testing-time when a change of a stochastic characteristic of the software failure-occurrence time or software failure-occurrence time-interval is observed is called change-point. It is said that effect of the change-point on the software reliability growth process influences on accuracy for software reliability assessment based on a software reliability growth model (SRGM). We propose an SRGM w...