Blog
Upcoming transit stop arrivals data parsing
Merging static and real time GTFS data for upcoming stop arrivals insights
Calculating turn angles
Notes on how to determine turn direction
More efficient spatial intersection in Spark
A poor man's R-tree spatial index solution
Modeling a 40% budget increase w/ GTFS
Allocating new service based on routes by headway and trip runtime
Notes from challenges during parsing of AWS access logs
Regex conditionals and non-capturing groups for the win
RAPTOR algorithm with caching
Notes on suggested optimizations
RAPTOR transit routing algorithm basics
A simple code-based demonstration of the fundamental concept behind RAPTOR
Map matching over-simplified
An attempt to break down map matching into a simple, albeit crude example