Flag of Sodor, a fictional island featured as the setting for The Railway Series books by the Rev. Wilbert Awdry (and his son Christopher), begun in 1945, and for the popular Thomas &amp; Friends television series since 1984, based on the description given in the books. The ratio of the flag itself and its constituent parts are not explicitly stated, but overall the flag ratio appears to range between being 1:2 and 3:5 (with one 5:8 version seen), with the white stripe taking up about 30% of the flag's height (generally ranging between 2/7 and 33% of the height) and the two orange stripes taking up about 15% of the flag's height each (usually ranging from 10% to 20% of the height each).
Sources: https://thomasfriendsreviews.blogspot.com/2016/09/movie-review-great-race-spoilers.html, Thomas &amp; Friends: The Great Race movie
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HapHaxion