Probabilistic Safety Analysis of Railway Lines

Probabilistic Analysis of Route Deviation Bus Lines

Route Deviation Bus Lines (RDBLs) constitute a hybrid between traditional fixed-route bus lines and demand responsive, dial-a-ride systems; they are viewed as a promising way to combine responsive transportation services with high productivity. We investigate the performance of Route Deviation Bus Lines through development of some simplified probabilistic models. The dependence of performance o...

Probabilistic Model-Based Safety Analysis

Model-based safety analysis approaches aim at finding critical failure combinations by analysis of models of the whole system (i.e. software, hardware, failure modes and environment). The advantage of these methods compared to traditional approaches is that the analysis of the whole system gives more precise results. Only few model-based approaches have been applied to answer quantitative quest...

Probabilistic Safety Analysis in Safety Management of Nuclear Power Plants

Bi-directional safety analysis of product lines

As product-line engineering becomes more widespread, more safety-critical software product lines are being built. This paper describes a structured method for performing safety analysis on a software product line, building on standard product-line assets: product-line requirements, architecture, and scenarios. The safety-analysis method is bi-directional in that it combines a forward analysis (...

An Intelligent Railway Safety Risk Assessment Support System for Railway Operation and Maintenance Analysis

The paper presents the development of an intelligent railway safety risk assessment based support system. The proposed method can evaluate qualitative and quantitative safety risk data and information in a uniform manner for railway safety risk assessment. It permits the safety risk analysts to assess the risks associated with the failure modes directly using linguistic terms, i.e. qualitative ...