LandTransportKit is the first Swift package that I’ve submitted to the Swift Package Index. Given that I’ve been using Swift and relying on Swift packages since, well, the Swift epoch began, this is ridiculous.

Let me explain what it’s capable of.

First, it lets developers in the Apple ecosystem make use of all four—keep reading!—of the LTA DataMall APIs that I make use of for Singapore Buses:

  1. In a Mac app, I download all bus stops, services, and routes for Singapore Buses which I then package in an sqlite database and bundle with the iOS app; and,
  2. Retrieving bus arrival estimates in the Singapore Buses app.

Second, outside of those four APIs (stops, services, routes, and arrivals), I’ve expanded the package to support 21 additional APIs covering a host of additional functionality—from available car parking spaces to faulty traffic lights to current traffic camera images:

LTA RefDescriptionSupported
2.1BUS ARRIVALS✅
2.2BUS SERVICES✅
2.3BUS ROUTES✅
2.4BUS STOPS✅
2.5PASSENGER VOLUME BY BUS STOPS✅
2.6PASSENGER VOLUME BY ORIGIN DESTINATION BUS STOPS✅
2.7PASSENGER VOLUME BY ORIGIN DESTINATION TRAIN STATIONS✅
2.8PASSENGER VOLUME BY TRAIN STATIONS✅
2.9TAXI AVAILABILITY✅
2.10TAXI STANDS✅
2.11TRAIN SERVICE ALERTS✅
2.12CARPARK AVAILABILITY✅
2.13ESTIMATED TRAVEL TIMES✅
2.14FAULTY TRAFFIC LIGHTS✅
2.15PLANNED ROAD OPENINGS✅
2.16APPROVED ROAD WORKS✅
2.17TRAFFIC IMAGES✅
2.18TRAFFIC INCIDENTS✅
2.19TRAFFIC SPEED BANDS✅
2.20VMS / EMAS✅
2.21BICYCLE PARKING✅
2.22GEOSPATIAL WHOLE ISLAND❌
2.23FACILITIES MAINTENANCE✅
2.24STATION CROWD DENSITY REAL TIME✅
2.25STATION CROWD DENSITY FORECAST✅
2.26TRAFFIC FLOW❌
2.27PLANNED BUS ROUTES✅

There’s a small amount of DocC in the package (more is coming, hence the 0.9.0 tag) and I have an example app in the works (for macOS, iPad, and iPhone) that provides some examples of how to make use of the package.

Car Park Availability
macOS Table View of Carpark Availability
Traffic Camera Images
Traffic Camera Images

Third—and we’re into the weeds—sometimes the LTA provides latitude and longitude as Double and sometimes as String. LandTransportKit handles it for you, just access location for a CLLocation, or coordinate2D for a CLCoordinate2D struct.

What’s Not Supported and Why:

  • GEOSPATIAL WHOLE ISLAND: SHP files need to be converted to .geojson for usage in Maps. That conversion isn’t in scope of the package.
  • TRAFFIC FLOW: This is meant to be updated quarterly but the last update was September 2024 (as of July 2025). If it wheezes into life, I’ll include it.

The AI Disclaimer

I wrote most of this package in Xcode 26, though based on version numbers being tied to years, it is being automatically tested on a version of Xcode 11 years notwithstanding1. I used the ChatGPT integration to write the documentation for most of struct , class, and func definitions. It hasn’t been used for the code itself, the test cases, or DocC2.

  1. Xcode 15. ↩︎
  2. I could fill an article, let alone a footnote, with how I feel about AI in coding. It’s great for exploration of ideas. It’s great for writing code documentation (the more mundane side of creativity). It’s great at explaining code already written. It’s bad for me as a programmer if I let go beyond that and, as a friend put it, become a crutch. ↩︎