If by highway he meant the section of the East Coast Parkway that is straight and wide (the median has potted plants rather than planted trees), my recollection

If by highway he meant the section of the East Coast Parkway that is straight and wide (the median has potted plants rather than planted trees), my recollection is that this is a myth, that section of the highway may have been intended for planes to land on in an emergency, but no longer. Unfortunately I do not have sources. But if by highway he meant Lim Chu Kang road, then it's not just plausible: Lim Chu Kang road is actually used as an extra airstrip. The RSAF conducts regular exercises to ensure it can still be used as such, the last one being about 5 years ago [0]. There is an interesting video from 2009 on the subject too [1]. [0] https://www.straitstimes.com/singapore/planes-taking-over-lim-chu-kang-road https://www.straitstimes.com/singapore/planes-taking-over-li... [1] https://www.youtube.com/watch?v=CBMD4QTSyqM https://www.youtube.com/watch?v=CBMD4QTSyqM