The authors used data from the Black Women's Health Study to assess association between neighborhood urban form and physical activity. Women reported hours/week of utilitarian exercise walking vigorous activity in 1995 on biennial follow-up questionnaires through 2001. Housing density, road networks, availability public transit, sidewalks, parks were characterized for residential neighborhoods 20,354 participants living New York, York; Chicago, Illinois; Los Angeles, California. quantified...

Abstract. Large sample datasets are transforming the catchment sciences, but there few off-the-shelf stream water chemistry with complementary atmospheric deposition, streamflow, meteorology, and physiographic attributes. The existing CAMELS (Catchment Attributes Meteorology for Large-sample Studies) dataset includes data on topography, climate, land cover, soil, geology across continental US. With CAMELS-Chem, we pair these attribute 516 catchments deposition from National Atmospheric...

The application of a mixed logit approach using stated-preference survey data to the development itinerary choice models is described. include effects on choices airline, airport, aircraft type, fare, access time, flight scheduled arrival and on-time performance. empirical results demonstrate importance explicitly accounting for traveler preference heterogeneities by segmentation trip purpose, interaction involving frequent flier status, random parameter specifications. Explicitly including...

Modeling passengers' flight choice behavior is valuable to understanding the increasingly competitive airline market and predicting air travel demand. Standard mixed-multinomial logit models of itinerary for business are estimated on basis a stated preference survey conducted in 2001. The results suggest that observed demographic- trip-related differences incorrectly manifested as unobserved heterogeneity random-coefficient mixed model ignores characteristics travelers. Among demographics,...

Bluetooth media access control (MAC) data collection technology has emerged as a forerunner in the suite of passive techniques used travel time and origin–destination (O-D) efforts because its low cost, ease implementation, richness resultant set. With few notable exceptions, majority published research practical applications MAC to date have focused on speed analysis. This paper aims add existing literature O-D by describing an analytic approach develop route-specific tables for 15-mi...

We introduce Patch Refinement a two-stage model for accurate 3D object detection and localization from point cloud data. is composed of two independently trained Voxelnet-based networks, Region Proposal Network (RPN) Local (LRN). decompose the task into preliminary Bird's Eye View (BEV) step local step. Based on proposed BEV locations by RPN, we extract small subsets ("patches"), which are then processed LRN, less limited memory constraints due to area each patch. Therefore, can apply...

Abstract Purpose Validation metrics are a key prerequisite for the reliable tracking of scientific progress and deciding on potential clinical translation methods. While recent initiatives aim to develop comprehensive theoretical frameworks understanding metric-related pitfalls in image analysis problems, there is lack experimental evidence concrete effects common rare specific applications. We address this gap literature context colon cancer screening. Methods Our contribution twofold....

To examine the association of personal values, built environment, and auto availability with walking for transportation.Participants were drawn from 11 U.S. metropolitan areas good transit services.865 adults who had recently made or contemplating making a residential move.Respondents reported if was their primary mode nine trip purposes. "Personal values" reflected ratings 15 variables assessing attitudes about urban environmental attributes, high reliability (ot = 0.85). Neighborhood form...

Abstract Airport choice models have been used extensively in recent years to assist the transport planning large metropolitan areas. However, these studies typically focussed solely on airports within a given area, at time when passengers are increasingly willing travel further access airports. This article presents findings of study that uses broader, regional data from East Coast United States collected through stated based air survey. The makes use cross-nested logit structure allows for...

Network airlines traditionally attempt to minimize passenger connecting times at hub airports, assuming that passengers prefer minimum scheduled elapsed for their trips. However, minimizing creates schedule peaks airports. These are extremely cost-intensive in terms of additional personnel, resources, runway capacity, and recovery. Consequently, should be minimized only if the anticipated revenue gain is larger than increase operating cost (i.e., this policy increases overall profit). The...

This study focuses on work commuters who currently rideshare, are potential rideshare commuters, or indicated a willingness to use services. Discrete choice models were developed with survey data of residents in the northeastern United States. Built-environment variables based home and workplace locations examined. While socio-demographic characteristics similar, those indicating services dissimilar, specifically women younger individuals uninterested these programs. Those live denser areas...

The application of a mixed logit approach using stated-preference survey data to the development itinerary choice models is described. include effects on choices airline, airport, aircraft type, fare, access time, flight scheduled arrival and on-time performance. empirical results demonstrate importance explicitly accounting for traveler preference heterogeneities by segmentation trip purpose, interaction involving frequent flier status, random parameter specifications. Explicitly including...

This paper describes a comprehensive vehicle fleet composition, utilization, and evolution simulator that can be used to forecast household ownership mileage by type of over time. The components the are developed in this research effort using detailed revealed stated preference data on planned transactions collected for large sample households California. Results model development show holds promise as tool simulating vehicular choice processes context activity-based travel microsimulation systems.

In this paper an estimation is made of a joint household-level model the number vehicles owned by household, vehicle type choice each vehicle, annual mileage on and individual assigned as primary driver for vehicle. A version proposed system currently serves engine household composition evolution simulator, which itself has been embedded in larger Simulator Activities, Greenhouse Emissions, Energy, Networks, Travel (SimAGENT), activity-based travel emissions forecasting Southern California...

Modeling passengers’ flight choice behavior is valuable to understanding the increasingly competitive airline market and predicting air travel demand. Standard mixed-multinomial logit models of itinerary for business are estimated on basis a stated preference survey conducted in 2001. The results suggest that observed demographic- trip-related differences incorrectly manifested as unobserved heterogeneity random-coefficient mixed model ignores characteristics travelers. Among demographics,...

AS ONE CRITIC REMINDS US in a recent article, there is readily noticeable "change of emphasis" the tone and techniques plays which Harold Pinter has written after The Homecoming (1965). And although several commentators have analyzed Pinter's better known stage works from this post—Homecoming period — Landscape (1968), Silence (1969), Old Times (1971) —, been practically no attention directed towards brief dramatic sketch entitled "Night," was performed England 1969 as part an evening short...

The results of an application Internet survey methods to a household travel diary project are described. included full field Internet-based instrument in split sample design with conventional telephone or mail administration. effects this type administration on response and data work described demonstrates how instruments can be used complement other, more traditional approaches. several features that take advantage the computational power provided by modern servers graphical user interface...

IN A RECENT ARTICLE, Mary B. O'Connell suggests that John Arden's Serjeant Musgrave's Dance is "a contemporary folk ritual" whose "characterization and plot development" are modeled on the medieval Mummers Play of Plough Monday, which traditionally was mime slaying winter." The purpose here not to dispute Miss O'Connell's suggestion, since Monday play might well be inspiration behind some elements in drama, especially second dance near end during "Each man takes his drink, swigs a large...