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Switching today would be virtually impossible. Just think of all the freeway interchanges that would have to be rebuilt, costing tens or hundreds of billions of
by frosted-flakes 8y ago
Switching today would be virtually impossible. Just think of all the freeway interchanges that would have to be rebuilt, costing tens or hundreds of billions of dollars.
- 7952 8y agoI think most interchanges would be fairly symmetrical. Although a lot of bellmouths at junctions would need to be changed to accommodate HGVs. And lanes approaching roundabouts would need to be moved.