I am not sure I have seen anyone make a repair like this to a road piece but I am sure someone out there has but regular road pieces are so inexpensive I would assume that the broken ones are just thrown away and easily replaced. However your piece is different as it is an exclusive piece for this set only I believe so its a bit harder to replace but...I have bought these pieces myself on Ebay so you may have some luck in searching the road pieces for sale there. Has that piece been weathered as what I remember them as a deep color brown.
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