Business planning as well as analytics on top of large-scale database systems is valuable to decision makers, but planning operations known and implemented so far are very basic. In this paper we propose a new planning operation called interval disaggregate, which goes as follows. Suppose that the planner, typically the management of a company, plans sales revenues of its products in the curren...

We propose an integrated activity-based discrete choice model system of an individual’s activity and travel schedule, for forecasting urban passenger travel demand. A prototype demonstrates the system concept using a 1991 Boston travel survey and transportation system level of service data. The model system represents a person’s choice of activities and associated travel as an activity pattern ...

Traditional microeconomic modeling of public transport (usually a single line) has been based on aggregated demand description, that is, total ridership along a line and average journey length. This way, aggregation is spatial rather than temporal, as most public transport systems are designed for the period of largest demand. With this approach, various authors have formulated optimization mod...

Laypeople's perceptions of health and safety risks have been widely studied, but only a few studies have addressed perceptions of ecological hazards. We assembled a list of 39 attributes of ecological hazards from the literatures on comparative risk assessment, ecological health, environmental conservation and management, environmental psychology, and risk perception. In Study 1, 125 laypeople ...

This text describes the first application of a novel path flow and origin/destination (OD) matrix estimator for iterated dynamic traffic assignment (DTA) microsimulations. The presented approach, which operates on a trip-based demand representation, is derived from an agent-based DTA calibration methodology that relies on an activity-based demand model. The objective of this work is to demonstr...

This paper presents a pre-trip demand simulator with predictive capabilities and an explicit simulation of the response of travelers to real-time pretrip information. The demand simulator is an extension of dynamic OD estimation models aimed at explicitly capturing the effect of information on demand. This is achieved by explicitly simulating driver behavior in response to both descriptive and ...

This article tries to disaggregate the changes in South Africa’s rugby ideology during and after the Rugby World Cup tournament of 1995. The nature of support for the victorious Springbok team which in a rare historical moment seemed to transcend race, is explained in the light of contextual influences. Likewise, the significance of subsequent events till the middle of 1997 which appeared to co...

The objective of the project is to build a dynamic model of the UK population which is richly specified and spatially disaggregate. In other words, both individuals and households are represented in great detail, being accorded characteristics such as age, income, family membership, and health status; and are assigned to geographical locations at least to the level of census output areas (i.e. ...

We review the major hemorheological experimental studies that show the erythrocyte aggregation as a link between basic and clinical research. The results of the clinical cross-sectional and longitudinal studies presented here will highlight the possible association between erythrocyte aggregation and plasma fibrinogen. Basic studies conducted in vitro are also mentioned as for its relevance in ...