Data · BAANLYY Scores™ · Methodology

The BAANLYY Transit Score, defined

A transparent framework for comparing Thai neighbourhoods on transit access: four equally-weighted sub-factors — station proximity, line frequency & reliability, multi-modal connectivity and network reach — each scored 0–25 for a 0–100 total, benchmarked against Bangkok's BTS, MRT, ARL and SRT commuter-rail network.

Share
By Kirby Scofield
Founder of BAANLYY · International real estate broker, investor & relocation specialist
Last updated 8 July 2026 · Last reviewed 8 July 2026

← Scores methodology hub

Status, upfront: this page defines the Transit Score methodology in full detail. A single simpler 1–10 "Transit" rating is already live inside the BAANLYY Area Score for every neighbourhood. This four-factor, 0–100 breakdown is the disclosed framework for a more detailed version — not yet computed and published per area. We say so plainly rather than implying a score that doesn't exist yet.

01

The four sub-factors

Sub-factorPointsHow it would be measured
Station proximity0–25Walking distance and time to the nearest BTS, MRT, Airport Rail Link (ARL) or SRT commuter-rail station. Sub-500m / under-7-minute walks score highest; areas requiring a motorcycle taxi or songthaew feeder trip score lower.
Line frequency & reliability0–25Typical peak and off-peak train frequency on the nearest line(s) — BTS Sukhumvit/Silom and MRT Blue generally run every 3–5 minutes at peak and 5–10 minutes off-peak, versus SRT Dark Red/Light Red commuter lines which run less frequently. Service hours and general on-time reputation are also weighed.
Multi-modal connectivity0–25Whether the area sits at or near an interchange between lines (e.g. Siam, Asok/Sukhumvit, Mo Chit/Chatuchak Park), and how well it connects onward to buses, the Chao Phraya Express Boat, ride-hailing and, increasingly, bike-share and e-scooter parking.
Network reach0–25How many major destinations — CBD office clusters, malls, hospitals, universities, and the airports (Suvarnabhumi via ARL, Don Mueang via SRT) — are reachable within roughly 30–45 minutes and one or fewer transfers from the area.
02

The formula

Transit Score = Station Proximity (0–25) + Line Frequency & Reliability (0–25) + Multi-modal Connectivity (0–25) + Network Reach (0–25), for a maximum of 100. All four sub-factors are equally weighted by default, the same disclosed, equal-weight approach BAANLYY uses for its Investment Score and Neighborhood Score — every BAANLYY score follows the same transparent-methodology principle, even where the specific factors differ by purpose.

03

Bangkok's rail network, in brief

Bangkok's urban rail network spans the BTS Skytrain (Sukhumvit, Silom and Gold lines), the MRT (Blue, Purple, Pink and Yellow lines), the Airport Rail Link connecting the city to Suvarnabhumi Airport, and the SRT Dark Red and Light Red commuter lines serving the northern and western suburbs. Frequency varies by line and time of day — the core BTS and MRT Blue lines generally run every few minutes at peak and somewhat less frequently off-peak, while commuter-rail lines run less often. An area's Line Frequency & Reliability sub-score is set relative to which of these networks actually serves it, not a single city-wide average.

04

Why connectivity and reach are scored separately from proximity

Two areas can both sit 300 metres from a station and still offer very different transit value. An interchange station such as Siam, Asok/Sukhumvit or Mo Chit puts multiple lines, bus routes and — at Sathorn — the Chao Phraya Express Boat within reach of the same address, while a single-line station further from an interchange offers less onward flexibility. Splitting Multi-modal Connectivity and Network Reach into their own sub-factors captures that difference instead of treating "near any station" as interchangeable.

05

How this relates to other BAANLYY tools

06

Frequently asked

Is the Transit Score live for specific areas today?Not yet as a standalone computed 0–100 score per neighbourhood. This page defines the methodology — the four sub-factors, their weighting and how each would be measured. The closest live rating today is the "Transit" factor inside the BAANLYY Area Score (see each city's own /scores page), a simpler single 1–10 editorial rating rather than this four-factor, 0–100 breakdown. We disclose that gap explicitly rather than implying a live per-area score already exists.
How is this different from the Area Score's Transit factor?The Area Score's Transit factor is one of nine 1–10 inputs averaged into a neighbourhood's overall 0–100 Area Score — a quick, single-number proxy for transit quality alongside safety, nightlife, family-friendliness and the rest. The Transit Score defined on this page is a dedicated, four-factor deep dive (station proximity, frequency, connectivity, network reach) intended to score transit access on its own 0–100 scale, independent of the other lived-experience factors.
Which rail systems does this cover?BTS Skytrain (Sukhumvit, Silom and Gold lines), MRT (Blue, Purple, Pink and Yellow lines), the Airport Rail Link (ARL), and the SRT Dark Red and Light Red commuter lines — Bangkok's full urban rail network as it exists and continues to expand today. Equivalent frameworks would apply as light-rail or BRT systems develop in other Thai cities.
Why weight frequency separately from proximity?Because a station 400 metres away that runs a train every 12 minutes off-peak is a meaningfully worse daily commute than one 600 metres away with 4-minute peak frequency. Scoring them as separate sub-factors avoids the common shorthand of treating "near a station" and "good transit" as the same thing.
Does a high Transit Score mean an area is a good investment?Not on its own. Transit access is one input among many — see the separate BAANLYY Investment Score for a dedicated yield/appreciation/liquidity/risk framework. This page is a comparison tool for transit access specifically, provided for general research purposes only, not investment or relocation advice.
Keep going
Scores methodology hubNeighborhood ScoreInvestment ScoreBuilding ScoreBangkok Area Score

Prioritizing transit access in your search?

BAANLYY can connect you with vetted local agents who know which buildings genuinely deliver on a short, reliable commute.

Expat services directoryBrowse residences

This is a disclosed proprietary methodology for general research purposes only — not investment, legal, financial or relocation advice. Rail frequency and network details referenced here reflect the general, published structure of Bangkok's transit system as of 2026 and are subject to change as lines expand; always verify current schedules directly with BTS, MRT or the relevant operator.

Sources & References

Sources & References

Primary and official sources are cited above. Government rules, fees and procedures in Thailand change over time and vary by office; always confirm current requirements with the relevant authority before relying on them. BAANLYY never takes paid placement in editorial content.