There used to be a time, especially in the mid 20th century, when several bridges were built with narrow sidewalks, or none at all. Forget about emergency lanes & especially not allowing for bus & bike lanes. Just have the crossing get all plugged up, so you are still punished, even if you use public transit.
http://waterlooarchitecture.com/bridge/blog/2018/09/14/multimodal-manila
https://www.bloomberg.com/news/articles/2014-08-19/why-portland-is-building-a-multi-modal-bridge-that-bans-cars This is one of the best bridges of its type in the world. The Interstate bridges in downtown Portland,_Oregon have no bike and pedestrian access. However, the Tilikum_Crossing was intended to be a nice counterbalance. https://en.wikipedia.org/wiki/Tilikum_Crossing#Design
https://en.wikipedia.org/wiki/Providence_Bridge_Pedal
Vancouver, BC could have really benefited from something like the Tilikum_Crossing_in_Portland. However, no such streetcar or tram-train bridge exists in Vancouver, BC. Fortunately, Portland & Seattle were able to revive some of their old streetcar lines. Cities like New Orleans, Philadelphia, Boston, Toronto, SF & Melbourne retained some of their streetcar or tramlines, unlike Vancouver.
https://publications.gc.ca/collections/collection_2012/tc/T41-1-50-eng.pdf
The George_Massey_Tunnel in BC, Canada is a sad joke. It wasn't designed to accommodate 2 bus & bike lanes. No footpaths & no emergency lanes. It is a fine example of BC bottleneck planning. The Louis-Hippolyte_Lafontaine_Bridge-Tunnel in Montreal, is slightly a little better.
https://www.highway99tunnel.ca While this new tunnel will have 2 bus - HOV lanes & a bike path, there is no provision for a train connecting the airport to the ferry terminal. https://www.delta-optimist.com/local-news/interurban-rail-not-on-the-horizon-for-delta-6448841 This means that eventually some day, a new train tunnel or bridge will have to be built to provide a rail link between the Tsawwassen_ferry_terminal and the Vancouver_International_Airport.
Some day, when enough sensible people can implement proper big city regional planning, a train could run from Waterfront_station_(Vancouver) to the Park_Royal_Shopping_Centre and onto the Horseshoe_Bay_ferry_terminal. Unfortunately, backward & slow-moving Vancouver is only just starting to think about having its own version of a North_Shore_railway_line.
https://www.websiteplanet.com/blog/best-green-web-hosting-services
Whether its for environmental reasons or just for overall efficiency, transportation corridors that are designed for various modes of of transit, can effectively move more people.
https://therabbitportal.blogspot.com/search?q=BC
