This paper presents a comparative parallel about resistance to disintegration or cohesion loss from the results of Cantabro test in dry and wet methods for specimens made with two types porous asphalt friction courses exposed: first them designed produced modified cement penetration standard 60-70 x10-1 mm an additive consisting fatty acid amides proportion 2.0% respect total mass binder present said mixture second without modifying additive. The are type surface pavement structure which by...

Purpose: This study aims to analyze travel choices made by air transportation users in multi airport regions because it is a crucial component when planning passenger redistribution policies. The purpose of this find utility function which makes possible know the variables that influence users’ choice airports on routes main cities Colombian territory.Design/methodology/approach: research generates Multinomial Logit Model (MNL), based theory maximizing utility, and data obtained revealed...

Characteristics and aspects to be considered in conducting household travel surveys (HTS) developing countries are discussed. The main differences with the HTS conventional approach (interviewing people by telephone or mail) highlighted. These topics covered context of a case study that presents methodology used metropolitan area Medellín, Colombia, 2011 2012 sample 20,000 face-to-face interviews. Results presented analyzed for study. A low number trips per inhabitant, 1.7, was found. modal...

This paper proposes a new scale for assessing traveler experience in air travel. Here, passenger is measured through travelers' perception of service quality, considering it as chain services. The called travel quality (ATSQ). It considers three stages: departure airport service, airline and arrival service. applies the ATRS to examine domestic travels Colombian context. Given that traveler’s plays crucial role determining passenger’s satisfaction, structural...

Transport studies that adopt complex analyses present methodological challenges lead to the use of innovative techniques address limitations traditional methods. In Latin American context, people consider security as a relevant variable in their daily lives. Thus, when travel around city and choose mode transport, secu-rity becomes an important factor should therefore be included transport studies. However, definition terms Colombian context remains unclear. Therefore, we examined...

Travel demand models typically use modal attributes and socioeconomic characteristics as explanatory variables. It has been established that attitudes perceptions well individual psychological variables influence a user's behavior. In this study, the latent personality variable was included in estimation of hybrid discrete choice model to incorporate effects subjective factors. The assessed with 16PF psychometric test, which widely by researchers worldwide. paper analyzes results applying...

Most Colombian freight is transported on roads with barely acceptable conditions, and although there a speculation about the need for railway transportation, not study in Colombia showing variables that influence modal choice by companies generate transportation. This article presents calculation of demand hypothetical through discrete model. It begins qualitative research focus group techniques to identify persons responsible transportation large commercial Antioquia (Colombia). The...

Porous asphalt mixes (PAM), form a special road surface for pavement structures, have particle size distribution that lets infiltrate to the runoff storm water through of it because its voids content about 20 %. Many researchers conducted studies and concluded use modified asphalts is completely necessary design PAM. Organic chemical additives procedures as foamed enhanced performance PAM, during their service life. This paper focused on mechanical characterization PAM how with fatty acid...

This paper quantified the impact of outbound and return flight schedule preferences on airline choice for international trips. Several studies have used data to identify trade-offs different air carrier service attributes, such as travel time, fare schedule. However, estimation effect schedules an round-trip has not yet been studied in detail. Therefore, this study introduces attributes related characteristics interaction into models, which previously reported literature. We developed a...

Social sustainability is a dimension of the concept that has gained importance only in last few decades and can be identified as pursuit measure social equity. Equity analyzed under two approaches: horizontal vertical. The approach considers distribution benefits equally, while vertical equity these same benefits, but between specific groups, which an adequate when dealing with policy-related topics, such tariff subsidy. Accessibility factor contributes to urban it may representation...

Abstract There is a growing consensus currently among transportation researchers on the importance of psychological aspects in choice transport mode, but there has been difficulty determining strength this aspect mode decision. This paper provides new basic framework for automatic preferences (AP) data and (AC) methods when applied subconscious choices modes associations positive qualities modal choices. The also includes observable attributes travel time, waiting number transshipment,...

Most studies about air travel have dealt with individual issues such as fares, delays and other variables inherent in this mode of transportation, well why travelers chose the against modes, but little has been done to model how a traveler chooses an airport between two available options big city. Currently passenger from city Medellin - Colombia some domestic destinations, option traveling by either airports, Jose Maria Cordova (JMC) or Enrique Olaya Herrera (EOH). This research presents...

Contexto: Las mezclas asfalticas drenantes son definidas como aquellas cuyos vacios con aire oscilan entre 20% y 25%, emplean ligante, un asfalto modificado algun polimero principalmente elastomerico. A diferencia de otros estudios reportados sobre el tema, se evaluo efecto la temperatura mezcla (160° C 170° C) GCR (via humeda modificacion), ya agregado petreo (100° C, 110° 130° C). Metodo: El presente estudio en laboratorio, resistencia al desgaste por abrasion (ensayo Cantabro) rigidez...