To better understand the problems and benefits of using biodiesel, E85, propane, natural gas, and hybrid vehicles in smaller communities, a survey of 115 small urban and rural transit agencies was conducted. This study describes the use of alternative fuels and hybrids by these transit providers; identifies motivating factors and deterrents for adoption; describes the experience of transit agen...

This report presents the development of Geographically Weighted Regression (GWR) models for predicting public transit use for home-based work trip purpose. A large array of potential transit use predictors were considered, including demographic, socioeconomic, land use, transit supply quality, and pedestrian environment variables. The best predictors identified through model estimation include ...

This paper extends carrier assignment models used in winner determination auctions for transportation procurement to include shipper non-price objectives and carrier transit point costs. The models are unlike traditional carrier assignment models which incorporate only carrier lane bids, and different from combinatorial auction models which focus on packets of lanes without considering transit ...

Public transit systems are ideal for studying the urban microbiome and interindividual community transfer. In this study, we used 16S amplicon and shotgun metagenomic sequencing to profile microbial communities on multiple transit surfaces across train lines and stations in the Boston metropolitan transit system. The greatest determinant of microbial community structure was the transit surface ...

Most of the exoplanets detected up to now transit in front their host stars, allowing for generation transmission spectra; study exoplanet atmospheres relies heavily upon accurate analysis these spectra. Recent discoveries mean that atmospheric signals from low-mass, temperate worlds are becoming increasingly common. The observed depth planets is small and more difficult analyze. Analysis simul...

The article discusses a strategy, referred to as Categorized Arrivals-based Phase Reoptimization at Intersections (CAPRI), which integrates transit signal priority and rail/emergency preemption within a dynamic programming-based real-time traffic adaptive signal control system. The system takes as input sensor data, from detectors, automatic vehicle locators, transponders, etc., for realtime pr...

background: to determine the colon transit time (ctt) in patients complaining of functional constipation and to evaluate the correlation between abnormal transit times and the types of constipation and the correlation with age and sex. materials and methods: the signs and symptoms of 84 patients with infrequent or difficult defecation, 33 males and 51 females, with a median age of 33.7 were rec...

in this paper, a novel multi-objective bus stop location model is proposed, which considers not only the coverage of demand and minimization of access time but also the necessities of suitable stops for transit network design phase. three objective functions are considered including minimizing (i) sum of the total access distance (time), (ii) the weighted combination of stops, and (iii) the num...