Luis A. Guzman

Luis A. Guzman
Los Andes University (Colombia) | UNIANDES · Department of Civil & Environmental Engineering

PhD
Associate Professor at Universidad de los Andes

About

94
Publications
28,572
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872
Citations
Introduction
Professor at the School of Engineering at Universidad de los Andes (Bogotá, Colombia). He holds an M.Sc from the Universidad de los Andes, and a Ph.D. cum laude in Systems of Civil Engineering, Urban and Transport Planning at the Universidad Politécnica de Madrid. Currently he is the director of the Urban and Regional Sustainability Group (SUR) at the Universidad de los Andes. My research interests include urban mobility, transport and land-use interaction and social, economic and spatial analysis of inequalities related to urban transport and policy evaluation in Latin America. I'm a committee member of the Social and Economic Factors of Transportation for The Transportation Research Board. I'm currently a researcher of national studies including the development models
Additional affiliations
February 2012 - present
Los Andes University (Colombia)
Position
  • Professor (Assistant)
Description
  • Professor in tansport and land-use modelling, accessibility and transport equity. Urban and regional planning. Land-value capture. Transport planning and sustainable transport. Head of Research group on urban and regional sustainability
February 2012 - present
Los Andes University (Colombia)
Position
  • Senior Researcher
Description
  • Transport planning, sustainable transport and land-value capture in master courses. Transport systems in undergraduate courses.
June 2010 - June 2011
Universidad Politécnica de Madrid
Position
  • Researcher
Description
  • Specialization Course in Sustainable Transport. Land-use and transport interaction and modeling
Education
June 2008 - August 2011
Universidad Politécnica de Madrid
Field of study
  • Civil Engineering Systems, Urban Transport Planning
August 2007 - February 2008
Universitat Politècnica de Catalunya
Field of study
  • Systems dynamics
November 2005 - June 2008
Universidad Politécnica de Madrid
Field of study
  • Planning, Design and Sustainable Management of Systems Civil Engineering

Publications

Publications (94)
Preprint
There is now a long tradition of accessibility research in Latin American cities, with an increasingly rich set of frameworks and methods from a distributional perspective. Despite such a positive outlook, most accessibility metrics deployed in research and practice do not consider the dimension of (dis)utility, which resonates more clearly with ma...
Article
Full-text available
That the COVID-19 pandemic is unprecedented in terms of its scale, spread and shocks can be evinced by the myriad of ever-changing responses cities all around the world have rolled out throughout the different waves of outbreaks. Although the threat is similar across the world, it took some time before its reach became global and the waves of outbr...
Article
Full-text available
To increase public transport use, especially for individuals with lower incomes, many cities worldwide have introduced subsidies for public transport systems. However, quantitative evidence of their effects on actual ridership remains scarce, especially in Global South countries. Using a quasi-experimental regression discontinuity design (RDD) in c...
Article
Full-text available
Population densities provide valuable spatial information to identify populations at risk, quantify mobility, and improve our understanding of future urban settlements. Advancements in machine learning algorithms open up new horizons to face these challenges. This research proposes a supervised machine learning approach, Random Forest, for populati...
Article
Full-text available
Despite unprecedented progress in developing COVID-19 vaccines, global vaccination levels needed to reach herd immunity remain a distant target, while new variants keep emerging. Obtaining near universal vaccine uptake relies on understanding and addressing vaccine resistance. Simple questions about vaccine acceptance however ignore that the vaccin...
Article
Full-text available
Cable cars are a viable alternative to improve citizens’ accessibility in zones with limitations on urban public transport supply due to the topography. In Latin America, such systems have recently been implemented in zones with high levels of poverty and vulnerability. Although the social implications of their implementation are relevant, individu...
Article
Accessibility and equality evaluations have been primarily focused on residential location. However, workplace location might be an equivalent contributor to inequalities in the travel experience and accessibility. Traditionally, transport planning connects high-demand areas with the best-quality and capacity transport infrastructures. Literature s...
Article
Full-text available
The built environment of cities is complex and influences social and environmental determinants of health. In this study we, 1) identified city profiles based on the built landscape and street design characteristics of cities in Latin America and 2) evaluated the associations of city profiles with social determinants of health and air pollution. La...
Preprint
Full-text available
En ciudades densas, el suelo disponible por habitante es menor. Allí, es más perjudicial el uso de transporte individual (motorizado) como modo de transporte principal. En estas áreas urbanas, el impacto del vehículo privado en el uso del espacio es inequitativo y su efecto en la justicia en el transporte es peor. Una distribución desbalanceada del...
Article
ReVista: Harvard Review of Latin America https://revista.drclas.harvard.edu/getting-from-here-to-there/
Article
Fare evasion is currently a significant concern for public transport systems worldwide. Evasion causes huge economic losses to operators and cities, but also negatively influences the system’s security perceptions. Despite its importance, there are few efforts to understand which observable and non-observable factors motivate individuals to evade f...
Article
The changes in public transport ridership can be quantified as fare elasticities that are useful inputs to inform planning and policymaking, particularly for Bus Rapid Transit (BRT) systems in developing city contexts. This research provides new evidence to the limited literature in the Global South about revealed preferences fare elasticity from d...
Article
Full-text available
We revisit the practice of combining revealed (RP) and stated preference (SP) data (i.e., the data enrichment, DE, paradigm) in discrete choice models using secondary data obtained from emerging sources; these facilitate access to massive information about travel choices and can be used to improve transport models. Even though the benefits of the D...
Article
Social distancing and economic lockdown measures implemented in Global North countries have been mimicked in the Global South to contain the spread of COVID-19. However, the consequences of such measures on activity and mobility patterns among social groups in Global South cities remain unclear. This paper seeks to provide reliable evidence from ch...
Article
Full-text available
In dense cities, the smaller the consumption of land per inhabitant, the more disruptive the use of individual transport as a sustainable transport mode. The impact of private vehicles on transport justice in the spatial dimension is worse there. The unbalanced distribution of street space in dense cities implies considerable challenges for sustain...
Article
Full-text available
There is limited evidence on the gender differences and location-specific built-environment factors associated with bicycling in Latin American cities. This study aimed to assess commuting in Bogotá by (1) analyzing the gender-specific trend of the standardized number of bicycle commuters during 2005–2017; and (2) assessing the socio-demographic, c...
Chapter
This article provides an overview of land-use and transport planning, an interdisciplinary field of research and practice that supports and informs policy evaluation for improving the decision-making process that is essential for sustainable urban development. It introduces the readers to the basic concepts, relationships, and challenges. Starting...
Article
Full-text available
This study presents evidence on two factors of the built environment affecting Bus Rapid Transit (BRT) demand at a station level throughout the day. These factors were examined in Bogotá, one of the most densely populated cities in the world, and its BRT system, which operates with high levels of congestion. We proposed an approach to explain how c...
Article
Full-text available
The possible impact of Bus Rapid Transit (BRT) systems on land values remains the source of an interesting debate. Using a matching method known as Coarsened Exact Matching (CEM) in combination with detailed cross-sectional cadastral data, this study assesses the effects of Bogotá’s BRT infrastructure on residential land value, as well as effect he...
Article
As a transport mode available to everyone and most abled-bodied urban residents, walking is, actually, the most equitable mode of transport. Walking brings several benefits to inhabitants among money savings and health improvement. Unfortunately, despite its benefits, walking is not a priority in the urban planning agenda of some cities, especially...
Preprint
Full-text available
Este estudio presenta evidencia sobre dos factores del entorno urbano construido (densidad y diversidad) que influyen en la demanda de un sistema de transporte público de alta capacidad a nivel de estación y hora del día. Estos factores fueron examinados en Bogotá, una de las ciudades más densamente pobladas del mundo y su sistema Transmilenio, que...
Book
Full-text available
El objetivo central del libro blanco que se presenta a continuación es mostrar un camino para contar con una estrategia efectiva para la reducción de la huella de carbono de las ciudades y hacer frente a los impactos y riesgos del cambio climático. Se analizan las políticas, regulaciones y capacidades requeridas para que los proyectos urbanos pueda...
Chapter
This chapter presents a critical examination of the interaction between concepts such as equity and accessibility in a framework of sustainable and inclusive urban development. The analysis compiles a series of reflections that build on previous research that focusses on the role of transport as enabler of opportunities for material and social capi...
Article
In a context of rising awareness for environmental concerns and promotion policies targeting non-motorized travel as a sustainable mobility solution, the bicycle has increasingly become an attractive transport mode in cities. However, accessibility to opportunities for people who cycle is not necessarily the same across socioeconomically different...
Article
Full-text available
The fare policy of the BRT system in Bogotá, in order to cover its operating costs, has consisted of steadily fare increases, since its creation until 2012. To date, no study has been done to estimate the users’ reaction to these changes in the short-term. That is, there is no information about price-demand elasticities. This issue should be a key...
Article
Planning for more sustainable mobility is an important goal for public authorities worldwide. Setting better conditions for pedestrians and cyclists has been related to many social benefits, such as less pollution and congestion. Local authorities, aware of the relationship between transport and land-use, are adopting planning tools to analyze grow...
Article
Accessibility inequalities are a common trait of many Global South cities. Such inequalities are often the result of urban development trajectories and inherited practices of transport planning marked by spatial segregation and decades of car-centred development. This situation, repeated across Latin American cities, tends to affect mostly the poor...
Article
Objective In Bogotá, Colombia, motorcyclists represent a concern as the proportion of motorcycle users between 2013 and 2018 has increased from 18% to 35%. Despite available risk reduction strategies, the fatality rates are also growing, notably in young adults (15–29 years old). This study aims at identifying correct helmet use patterns and its re...
Preprint
Full-text available
En Colombia se ha implementado un sistema de estratificación de viviendas basado en las características físicas del inmueble y su entorno, con el fin de establecer tarifas diferenciales a servicios públicos. Diversos estudios de transporte usan esta clasificación como variable sustituta del ingreso del hogar debido a la facilidad para obtener dicha...
Article
Full-text available
The Level of Traffic Stress (LTS) is an indicator that quantifies the stress experienced by a cyclist on the segments of a road network. We propose an LTS-based classification with two components: a clustering component and an interpretative component. Our methodology is comprised of four steps: (i) compilation of a set of variables for road segmen...
Chapter
Planning priorities in Bogota have historically focused on demographic, economic, and urban development needs with partial consideration of municipalities in its vicinity. Bogota is a frequent reference in local and international urban research from the optics of transport, urban planning, and urban development. Bogota shows important inequalities...
Article
Full-text available
This research sets out to examine the interaction between accessibility, social inequalities and sustainability by revisiting a well-documented case of inequalities in access in Global South cities: Bogotá. Our analysis builds on the concept of accessibility, focusing on the role of transport as an enabler of opportunities for social interactions,...
Preprint
Full-text available
Este documento es una versión adaptada (preprint) de un capítulo publicado en el libro The Routledge Handbook of Planning Megacities in the Global South (2020). Routledge, ISBN 9781003038160.
Article
Full-text available
Background: Cable cars provide urban mobility benefits for vulnerable populations. However, no evaluation has assessed cable cars' impact from a health perspective. TransMiCable in Bogotá, Colombia, provides a unique opportunity to (1) assess the effects of its implementation on the environmental and social determinants of health (microenvironment...
Article
Work trips contribute the most to congestion during peak hours in urban areas. For that reason, public and private organizations can play a relevant part by developing mobility plans (MPs) to propose possible strategies to confronting congestion. Although MP strategies such as the promotion of active and public transport modes, the implementation o...
Article
Bogotá and the 17 neighboring municipalities make up one of the biggest metropolitan areas in Latin America. However, despite strong functional interactions within the area, there is no official government body at this level in charge of coordinating authorities and providing solutions to the wide variety of issues arising in the regional urban lan...
Article
IIn Colombia, a socioeconomic stratification (SES) system of households based on the physical characteristics of the dwelling and its surroundings is implemented in order to set subsidies to public services. Many studies use this classification as a proxy variable for the household income, mainly because of the ease to retrieve data. This investiga...
Article
In Colombia, a socioeconomic stratification (SES) system of households based on the physical characteristics of the dwelling and its surroundings is implemented in order to set subsidies to public services. Many studies use this classification as a proxy variable for the household income, mainly because of the ease to retrieve data. This investigat...
Article
Full-text available
En el marco de las nuevas agendas de desarrollo sostenible, las ciudades son reconocidas como potenciales motores del desarrollo económico y social, además de ser lugares de inclusión, resiliencia y sostenibilidad. Este reconocimiento, de acuerdo con los objetivos presentes en el discurso de agendas y políticas a nivel global, contrasta fuertemente...
Technical Report
Full-text available
Los documentos CODS abordan temas de desarrollo sostenible en el ámbito latinoamericano y del caribe. Están dirigidos tanto a académicos como a tomadores de decisiones en el sector público y privado. No tienen un énfasis único. Los documentos pueden ser conceptuales, empíricos o contener reflexiones generales sobre el desarrollo sostenible. Pretend...
Technical Report
Full-text available
El segundo Documento CODS busca resaltar la importancia de la política de transporte urbano como una política social, orientada a conseguir que las ciudades latinoamericanas sean sostenibles. Las políticas de transporte han dado el paso a la construcción de políticas de movilidad, en las que se reconocen las diferentes demandas y necesidades de la...
Conference Paper
Road traffic injuries (RTIs) are an important cause of death and injury in Colombia and Brazil. This burden is not uniform across countries and cities. Understanding these differences and similarities in road traffic behaviors is key in designing effective RTI interventions. This study is aimed to assess such differences by comparing observed road...
Article
Full-text available
Bogotá, a paradigmatic case of urban (re)development driven by transport interventions, began transforming its public transport system anew in mid-2010. It was not until 2012 when a gradual implementation of the new integrated public transport system of Bogotá (SITP in Spanish) began. By 2015, about 74% of the new bus routes were implemented. The c...
Presentation
Full-text available
Cable cars are transport innovation that emerged from Latin America. Since 2004, 19 cities in Latin America, Asia, Africa and Europe have implemented cable cars. 58% of the world’s cable cars are in Latin America. Studies have found that this transportation system mprove urban mobility for vulnerable populations living in areas with geographic barr...
Article
Public transport has claimed a preferential position in recent urban development agendas internationally. Rising interest on inclusive development of cities at different levels of urban policy involves new opportunities and challenges for increasingly urban societies. In cities of the Global South, in addition to institutional and physical challeng...
Article
Full-text available
Bogotá transport authority changed Bus Rapid Transit (Transmilenio) fares in August 2012 to manage congestion, particularly during peak hours. They reduced fares and implemented fare discrimination between peak and off-peak hours to balance demand and make the system more affordable. To estimate the variation in the relative distribution of daily d...
Article
This paper presents an integrated and strategic model to simulate the dynamic interaction processes between land-use and transport at an aggregate level in Bogotá region. The model uses Causal Loop Diagrams from Systems Dynamics to explain cause and effect relations and incorporates a calibration for the base-year. This model is inspired by the bas...
Presentation
Full-text available
Nos preguntamos acerca de los posibles efectos sobre el acceso a oportunidades de generación de ingresos (trabajo) y la asequibilidad del transporte, a partir de la implementación de un subsidio de transporte público promedio para poblaciones de bajos ingresos y la implementación parcial del SITP zonal en Bogotá. El periodo de análisis es 2011/2015...
Preprint
Full-text available
Recientemente el transporte público ha ganado una posición preferencial a nivel internacional en las agendas de desarrollo urbano. El creciente interés en el desarrollo inclusivo de las ciudades a diferentes niveles de la política urbana, implica nuevas oportunidades y retos para la sociedad, concentrada cada vez más en las zonas urbanas. En las ci...
Conference Paper
Today’s young adults, also known as millennials, often adopt different lifestyles and behaviors from those of the older generations. Noticeable differences in millennials’ choices include preferences for residential location, vehicle ownership or transportation-related decisions. Most studies, to date, have focused on the mobility patterns of mille...
Conference Paper
The research sets out to examine the interaction between concepts such as equity, capabilities and accessibility. The authors' analysis builds on the concept of accessibility, focusing on the role of transport as enabler of opportunities for social interactions, healthcare and leisure, which contribute human development and wellbeing. The research...
Conference Paper
Full-text available
Lambda architecture has gained high relevance for big data analytics by offering mixed and coordinated data processing: real time processing for fast data streams and batch processing for large workloads with high latency. However, concrete implementations over cloud infrastructures and cost comparisons are still not being sufficiently analyzed. Th...
Article
Full-text available
The development of integrated techniques to evaluate long-term urban trends is a top priority in terms of creating a more sustainable society. In order to take a step forward from traditional peak-hour models, the purpose of this paper is to develop a travel demand (generation and attraction) strategic model of a typical day. The methodology integr...
Article
Full-text available
It has always been said that Bogota is one of the densest cities in the world, but what is not said is that density is distributed very differently within the urban area, with different effects on the population. This may create differences in location and access among socioeconomic groups. This paper shows four indicators that measure those differ...
Chapter
Full-text available
El siglo XXI presenta fuertes desafíos para las ciudades latinoamericanas. La problemática del cambio climático antropogénico, al cual el subcontinente aporta alrededor del 10% de las emisiones de gases de efecto invernadero, ejerce presión sobre los principales sectores económicos responsables de la polución, siendo la energía y el transporte fact...
Article
Bogotá's urban and regional planning has focused on pressing demographic, economic, and urban development needs that can no longer be administered without a comprehensive understanding of its surrounding region. Population growth in municipalities in the vicinity of Bogotá is twice that of the city, which in some cases has led to a functional integ...
Conference Paper
Full-text available
La evolución de las zonas urbanas se da en múltiples dimensiones. Su tamaño, densidad, usos y vocación del suelo y patrones de viaje son algunos de ellos. Una parte de este proceso de cambio consiste en las mejoras que se realizan en el territorio debido a los nuevos desarrollos o infraestructuras de transporte. Otra parte de este proceso es el cam...
Article
Considering the key role of the transport sector in the economy and its contribution to greenhouse gas (GHG) and local air pollutant emissions, the development of integrated techniques to evaluate long-term urban trends should be a top priority for creating a more sustainable society. This paper presents an integrated model for reliable estimation...
Article
Many cities in the developing world are reforming transit by formalizing bus services to capture user and nonuser benefits. A forerunner in transit reform, the city of Bogotá, Colombia, first implemented the TransMilenio bus rapid transit (BRT) system and then more recently undertook a large-scale initiative to formalize and regulate traditional ur...
Article
This research was aimed at exploring levels of equity in accessibility to employment and education in the city-region of Bogotá, Colombia's capital city. Building on consolidated methodologies for the assessment of potential accessibility, we estimate accessibility indicators at the zone level, evaluate how potential accessibility varies among inco...
Article
Full-text available
Providing adequate, conveniently located social housing (SH) is one of the main challenges that developing cities face nowadays. This research aims to provide evidence showing how low-income households value different attributes and their trade-offs when locating in the city of Bogotá and how different location options may bring different benefits...
Article
This paper compares the potential of four transportation policies designed to reduce greenhouse gases (GHG) and pollutant emissions as well as in urban areas. The policies analyzed include both pricing policies aimed to increase car costs and fleet renovation. The study applies a land-use and transportation interaction (LUTI) model combined with an...
Conference Paper
The development of integrated techniques to evaluate long-term urban trends is a top priority to create a more sustainable society. The purpose of this paper is to design a methodology to estimate long-term tour generation and its impacts on urban mobility in developing cities. The methodology integrates a work/study-related tour generation model a...
Presentation
Full-text available
Social exclusion is defined as the broad political and structural barrier to opportunity, i.e., social exclusion is due to a lack of access to opportunities (Preston & Rajé, 2007). The equity approach developed in urban planning requires that urban amenities, public services and workplaces must be evenly available in a way such that everyone receiv...
Article
This paper discusses the evaluation of synergies that derive from the implementation of policy packages designed to promote the use of public transportation and limit traffic congestion in urban areas. In this study, we propose the application of a land-use and transportation integrated (LUTI) model to study the outcomes from the implementation of...