Okay, the user wants me to translate "by-road" into Thai. Let me check the rules again. The first rule says to translate all content into Thai. The second rule says if it's already in Thai, leave it as is. The third rule is to provide only the translation without explanations.
So, "by-road" is an English term. I need to translate it. The direct translation might be "โดยทาง" but I should confirm if that's the correct term in Thai. Sometimes, "by-road" can refer to transportation by road, so maybe "การเดินทางโดยทางบก" is more accurate. Wait, but the user might just want a direct translation of the phrase, not the full meaning. Let me check a dictionary. "By-road" as an adjective or noun? If it's a noun, like a road, it's "ถนน". But "by-road" as a prepositional phrase might be "โดยทาง" which is "by way of" or "via". However, in some contexts, it could be "การเดินทางโดยทางบก" for "by road travel". But the user might just want the direct translation of the word "by-road" as a term. Maybe "โดยทาง" is sufficient. I'll go with "โดยทาง" as the translation. Let me make sure there's no existing Thai term that's more standard. I think that's correct. So the answer is "โดยทาง".