@PGLux @goatsarah @jon They both serve different purposes, so I'm not sure if the cost is a relevant factor. I'm not against building the HSL, but I believe today if you're served by the Alfa or even IC, you're good*. My concern is serving all the people that have no alternative to the car.
* OTOH my reference now is Canada where you take 9 or 12 hours to travel a distance similar to Lisboa-Porto… the regional does LX-PRT in 4h59m, <40 euro… https://mastodon.social/@arroz/111207953346499323 https://mastodon.social/@arroz/111208042637924816