Insights & Guides
In-depth articles about the London Underground, Overground, and getting around the city.
All articles
ToolIs a Travelcard Worth It? London Commute Cost Calculator
Enter your commute and find out whether pay as you go, a weekly Travelcard, or an annual season ticket is cheapest. Personalised results with March 2026 TfL fares.
Data AnalysisTfL Fare Tracker: 21 Years of Tube and Bus Prices
Interactive tracker showing how TfL fares have changed from 2005 to 2026. Tube peak, off-peak, daily caps, and bus fares across all zones with inflation adjustment.
AnalysisAre Lime Bikes Worth It in London?
Pricing, passes, borough politics, and how dockless bikes fit alongside the Tube and Overground.
AnalysisWhen Will the Tube Be Fully Automated?
An evidence-based analysis of driverless trains, covering Grades of Automation, platform edge doors, costs, and what TfL documents say.
GuideIs the Tube 24 Hours? Night Tube Guide
Which lines run all night, when they operate, how often trains come, and your alternatives when the Tube shuts.
AnalysisWhy Is It So Hot on the Tube?
TfL platform temperature data (2013–2024), the physics of tunnel heat, what London has tried, new Piccadilly line AC trains, and practical advice.
How Does the Tube Turn Around? Loops, Sidings, Crossovers and Reversing
A technical analysis of how London Underground trains reverse direction at termini: crossovers, turnback sidings, the Kennington Loop, stepping-back operators, shunt signals, tripcocks, and why turnaround time sets the maximum frequency.
AnalysisHow Deep Is the Tube?
TfL FOI data on every line and station, the deepest platforms, international depth comparisons, construction history, and what London’s depths reveal about its geology.
Engineering & DataHow Fast Does the Tube Actually Go? Speed by Line, the Physics, and Global Comparisons
London Underground max speed is 60 mph - but line averages range from 15 to 27 mph. Full speed data, braking physics, station spacing models, and global metro comparisons.
How Does the Tube Work? Power, Signalling, Maintenance and Engineering
A technical analysis of the four-rail power system (630 V and 750 V), CBTC and fixed-block signalling, tunnel construction, rolling stock, night maintenance, heat management, and the future of the London Underground.
GuideTube Fares in 2026: What You Actually Pay
Complete guide to London Underground fares from March 2026. PAYG singles, daily and weekly caps, Oyster vs contactless, pink readers, discounts, and the tapping mistakes that cost you money.
GuideLondon Tube Map: How to Read It, What It Hides, and Where to Get It
The Tube map is a design icon but it lies about distance and distorts geography. How to read it, walking shortcuts it hides, every version TfL publishes, and the current map to download.
GuideHow to Use the London Underground
The complete 2026 guide: contactless payments, fares and caps, the Overground's new named lines, Night Tube, accessibility, airport connections, and how to set up free delay alerts.