Design consistency refers to the conformance of a highway's geometry with driver expectancy. Drivers make fewer errors in the vicinity of geometric features that conform with their expectations. Techniques to evaluate the consistency of a design documented within this report include alignment indices, speed distribution measures, and driver workload. Alignment indices are quantitative measures ...

Despite the growth in traffic volumes, average operating speeds on rural highways have increased by as much as 8 kilometers per hour (kmh) in the past decade.1 But in most cases, horizontal and vertical alignments of these roads have remained unchanged. Together these two events have created geometric inconsistencies in certain locations because of the required curvature (demand) being greater ...

To assist in the on-going effort to reduce road fatalities as much as possible, this paper presents a new methodology to evaluate road safety in both the design and redesign stages of two-lane rural highways. This methodology is based on the analysis of road geometric design consistency, a value which will be a surrogate measure of the safety level of the two-lane rural road segment. The consis...

The paper presents an embedded control software development environment that provides a tool to verify the data consistency of embedded control software designed with Simulink models and UML models. A controller model is built with MATLAB/Simulink in the control logic design phase. Then a software model that correctly executes the control logic in the actual computing environment is built in th...

In this paper we describe a novel approach for engineering process representation based on the application of formal ontologies. We illustrate components of a framework that comprises domain abstractions, design interfaces and meta-data in the engineering design domain in the form of process-, artefactand task ontologies. A concrete application and use case of the framework components is detail...

In previous work, we have argued that constraints on the relationships between requirements elements and design elements can be used to guide designers in making design decisions. We have also argued the importance of controlling which constraints to apply, when to apply them, and what responses to take on constraint failure in order to make this guidance effective. Our suggestion, to control t...

Architectures represented by system construction ‘building block’ components and interrelationships provide the structural form. This thesis addresses processes, procedures and methods that support system design synthesis and specifically the determination of the integrity of candidate architectural structures. Particular emphasis is given to the structural representation of system architecture...

LIP, ENS Lyon, 46 Allée d’Italie, 69364 Lyon Cedex 07, France Contact: [email protected] Abstract. DSM-PM2 is an implementation platform designed to facilitate the experimental studies with consistency protocoles for distributed shared memory. This platform provides basic building blocks, allowing for an easy design, implementation and evaluation of a large variety of multithreaded co...

Massive storage systems typically replicate and partition data over many potentially-faulty components to provide both reliability and scalability. Yet many commerciallydeployed systems, especially those designed for interactive use by customers, sacrifice stronger consistency properties in the desire for greater availability and higher throughput. This paper describes the design, implementatio...

ion Spaces. Artificial Intelligence 5: 115-135. [11] Tate, A., Hendler J. and Drummond, M. 1990. A Review of AI Planning Techniques. In Readings in Plan-