Shared Itinerary

Shared Itinerary was a website I operated from 2015 through 2018.

I’d been to a lot of conferences, conventions, and trips where a group of people are coming on several different flights, yet trying to share cars from the airport. Traditionally, this had been a bit of an organizational challenge, usually involving having everyone post their flights to a shared spreadsheet. I created Shared Itinerary to show everyone’s flights visually, allowing travelers to easily see who’s arriving and departing at similar times.

Event flight chart on Shared Itinerary. The X-axis shows time, and the Y axis is a list of travelers. Horizontal bars are plotted for each traveler showing their flight times, so that it's easy to compare when people are arriving or departing at similar times.

Chart showing what time everyone is returning from a fictional sample event.

Flight charts were the primary purpose of the Shared Itinerary. These charts showed flights and layovers on each day for each attendee. For arrivals, the attendees were sorted by arrival airport and arrival time. For departures, the attendees were sorted by departure airport and departure time. The flight bars were also color-coded by the event arrival or departure airport. This made it easy for any given attendee to see if they were arriving at or departing from the event at the same airport and a similar time.1

Below the charts were tables showing details for all of the travelers’ flights, with the event arrival and departure airports color-coded to match the charts.

Home page of Flight Historian.

Traveler itinerary details for the same sample event.

Travelers’ flight information was kept private. The creator of an event had to give out a share link to allow anybody else access.

The application was fully time-zone aware.2 The itinerary details table showed each flight’s times in the local time of each airport. Itinerary charts were shown with all flight times converted to the time zone of the event. The chart could handle flights that occur during a shift to or from daylight saving time (summer time) by showing fewer or extra hours on the time axis as appropriate.

Although I used Shared Itinerary for a few years for a few personal conventions I attended, I realized quickly that I would be taking on substantial privacy responsibilities if the site became more widely used, which would require substantial growth and monetization to make the risk worthwhile. As this had largely been a hobby project for me and I was more focused on working on Flight Historian at the time, I ultimately decided to retire Shared Itinerary instead.

Technical Details

GitHub GitHub: bogardpd / shared_itinerary

I wrote Shared Itinerary in Ruby on Rails, using a PostgreSQL database to store itinerary data.

The attendee flight charts were inline Scalable Vector Graphics (SVG) images, generated using methods in a Chart class I wrote.

Shared Itinerary used FlightAware’s AeroAPI 2 to search for flights and to look up information about airports and airlines.

  1. The inspiration for my chart design was the time bar layout of ITA Matrix Airfare Search; instead of showing a lot of itinerary options for one traveler, it’d be a single itinerary each for a number of travelers. ↩︎

  2. All flight times were stored in UTC, and converted to whatever offset is appropriate for display. ↩︎