In case this isn't sarcasm: 1. Based on the article, and the parent comment here, it's not about the pedestrians (in this case). 2. Even if it were, it'd be m

In case this isn't sarcasm: 1. Based on the article, and the parent comment here, it's not about the pedestrians (in this case). 2. Even if it were, it'd be much more difficult. Tunnels and bridges must be 10x - 100x more red tape and cost than surface-only structures.