Aaron Antrim

Aaron Antrim

President & Founder

Aaron is the founder, President, and Lead Developer of Trillium. He has over 12 years’ experience as a web developer with over 8 years in public transportation. A strong background in communication and writing enables him to communicate technical concepts to diverse audiences, and to bridge communication divides between information technology, marketing, customer service, and operations disciplines.

A long-time cyclist and transit rider, Aaron’s core interest is making sustainable transportation easier to understand and use. His work at Trillium reflects his passion for using modern technology and clear communication to make transportation sustainable. He frequently speaks at conferences regarding open data and digital communications strategy for public transportation.

His experience in transportation encompasses fixed-route public transit, demand-response transportation, private transportation, and active transportation modes. Skills include developing data standards, web-application design, digital communications and marketing strategy development, and public speaking about connecting travelers with technology.

Aaron’s commitment to public transportation began as a co-founder of Green Wheels, an advocacy organization for transportation choices in Northern California, in 2006. Realizing the need for services and software to help transit agencies embrace modern technology and to communicate more effectively with their customers, he founded Trillium in 2007.

Originally from Northern California, Aaron now calls Portland, Oregon home. He enjoys traveling throughout the world and experiencing diverse transportation systems. Bike touring and backpacking are some of his favorite ways to see new places.

Aaron’s recent blog articles

Life and Growth of Transport Data Standards – Lessons from 12 Years of GTFS

Introduction The General Transit Feed Specification (GTFS), which describes public transit routes, stops, schedules, and fares, recently celebrated its 12th birthday! Over the course of its life, the GTFS has shown the transportation industry how a data specification can gain widespread adoption to enable new applications. Of course, there are many other important parts of…

Multimodal transportation data formats (& gaps) roundup, December 2017

This is an update to the Multimodal transportation data formats (& gaps) roundup, July 2016. How do we describe the whole transportation network? Introduction: towards comprehensive data The multimodal transportation network is greater than the sum of its parts. Abundant mode options — including public transit, bikeshare, carshare, ride hailing (TNC), rideshare, and vanpool — complement each other…

Using Checklists for Efficiency and Accuracy

Checklists are a powerful tool for ensuring reliable process and consistent outcomes. At Trillium, we use checklists to evaluate our GTFS datasets and before we push new code to our GTFS manager. This step makes sure everything is complete, accurate, and standardized. While it might sound excessive to suggest employing checklists for all projects and…

Introducing GTFS Best Practices

Earlier this year, a group of 17 organizations collected their separate experience, expertise, and interests into a collaborative project to develop and publish the GTFS Best Practices in an effort convened by Rocky Mountain Institute, an independent non-profit organization working to transform global energy use. Before the Best Practices, we already had the GTFS reference, of course, but…