Monday, April 24, 2017

There is a boom in bicycle research


Although we don't know how the 'bicycle literature' has been growing relative to all publications in transport/mobility, there is a good sign there is boom in bicycle research! The method used by Jennifer to identify the publications is not supper systematic but it's insightful anyway. Jennifer's blog post is a quick and interesting read.

credit: Jennifer Dill

Thursday, April 20, 2017

Quote of the day: programming



Monday, April 10, 2017

A glimpse into the future of autonomous vehicles

Cesar Hidalgo (Twitter) has shared this mesmerizing video by People's Daily, China. It shows hundreds of autonomous robots sorting parcels in a warehouse of a Chinese delivery company.

It makes you think about many things related the technology density of the Chinese economy and the coming changes in the labor market of China and beyond. The obvious thought that occurred to me, though, is how these warehouses can be thought as a super simplified beta-version of integrated systems of autonomous vehicles we might see in cities in 100 years form now... maybe 50.

Wednesday, April 5, 2017

Two new libraries for working with Spatial data in R

A quick heads up for those interested in using R for spatial analysis and mapping data. There are two relatively new libraries you might want to check out:

  • The first one is the ggspatial library, created by Dewey Dunnington. ggspatial is a great package that makes it super simple to create maps using ggplot. It uses a single geom_spatial() for all types of spatial objects (polygons, lines, dots, etc.) and it dispenses the use fortify(), making things much faster.


  • Another library some of you might find useful is sf (as in simple features), created by Edzer Pebesma. This library makes it much faster to conduct several spatial operations, like reading/writing data, intersecting spatial objects, computing shortest distance matrices etc. The sf library is integrated with ggplot2 for creating maps with geom_sf() and it also makes it easy to connect to spatial data bases. This promises to be a real game changer for spatial analysis in R.

Monday, April 3, 2017

Saturday, April 1, 2017

Google Self-Driving Bike




This is from last year, but we can always use it on April 1st :)

Wednesday, March 29, 2017

On my way to Boston

Hi all. I'm flying to Boston in the next few days to participate at the AAG conference.

I'm very excited about this because I'll participate in a panel with Susan Fainstein and others. In the panel, I'll be talking about transportation equity and accessibility in the just city. My talk will be based on the 1st paper of my thesis and some future research questions on the topic.

I will also be at the session 3650 presenting the preliminary results of the 2nd paper of my thesis, where I analyze the distributional impacts of the transport legacy of recent mega-events in Rio de Janeiro (Brazil) in terms of their impacts in inequalities in access to opportunities. The paper combines population census data with geolocated time-tables in GTFS format in order to conduct a before-and-after comparison of Rio's public transport system between 2014 and 2017. The paper examines how the newly implemented transport investments have reconfigured the catchment areas of the Olympic sports venues and of healthcare facilities by public transport and walking, looking specifically at how the population composition within those areas has changed in terms of income categories.

The other papers of my PhD will focus on inequalities in accessibility to employment and educational opportunities, adding some new elements regarding methods and theoretical discussions. More info to come as I make progress on the research.

ps. In case you're in Boston next week and would like grab a  coffee  beer, drop me line or a tweet.