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influenced and/or indicated by different factors that are termed as covariates. Hazard prediction with covariates is an elemental … notion in the reliability theory to estimate the tendency of an engineering asset failing instantaneously beyond the current … time assumed that it has already survived up to the current time. A number of statistical covariate-based hazard models …
Persistent link: https://www.econbiz.de/10009437954
. An extensive amount of literature on hazard models with covariates (also termed covariate models), including theory and … different risk factors, which are called covariates. The fundamental notion in reliability theory is the failure time of a …. Research shows that many statistical models have been developed to estimate the hazard of assets or individuals with covariates …
Persistent link: https://www.econbiz.de/10009437979
As part of a study aimed at estimating suburban highway needs for year 2005, models were developed for forecasting daily vehicle miles of travel (DVMT) for urban areas and its distribution by highway functional class, urban location, and urban area size. A regression model combining both time...
Persistent link: https://www.econbiz.de/10009435975
Transportation-related decisions of people often depend on what everybody else is doing. For example, decisions about mode choice, route choice, activity scheduling, etc., can depend on congestion, caused by the aggregated behavior of others. From a conceptual viewpoint, this consistency problem...
Persistent link: https://www.econbiz.de/10009436224
The purpose of the research described in this paper was to examine the effects of using longer and heavier tractor-trailer combinations from the standpoint of the individual firm or shipper rather than from the viewpoint of the motor carrier. The objective was to determine the effect of longer...
Persistent link: https://www.econbiz.de/10009436563
This report is concerned with the selection of routes in a network along which to transport hazardous substances … recognized in the routing decisions. Existing approaches typically assume static conditions, possibly resulting in inefficient … route selection and unnecessary risk exposure. The report described the application of recent advances in network analysis …
Persistent link: https://www.econbiz.de/10009436697
This paper examines the routing implications of the potential shipment of spent nuclear fuel and high-level radioactive … cross-country highway routes identified in the DOE's Final Environmental Impact Statement and three alternative routing … scenarios. The authors evaluate these routing scenarios based on four attributes: counties, exposed populations, total county …
Persistent link: https://www.econbiz.de/10009437024
It is certainly desirable that transportation forecasting models are correct in the sense that the traffic patterns they predict correspond to what would happen in reality under the circumstances assumed in the forecasting model. Unfortunately, it is notoriously difficult to transform the above...
Persistent link: https://www.econbiz.de/10009437082
data, IP geolocation data sets, CAJDA's Skitter data set for backbone connectivity, and BGP routing tables. We use this … the average ratio between the routing distance and geometric distance big (around 10). (3) The weighted mean hop count is …
Persistent link: https://www.econbiz.de/10009437239
In the first section, a firm with two servers must decide how to dynamically route arriving customers and allocate servers to two separate queues. The servers may work together or separately, and we provide insights into how the firm should optimally route customers and assign servers to queues....
Persistent link: https://www.econbiz.de/10009476546