Fixed that for you. LA, if you include early works (moving utilities, etc.) has quite a bit more Rapid Transit kms under construction than Toronto*. This includes D Line (Purple Line) Subway Extension Project, Foothill Extension Phase 2B to Pomona (A Line Extension), Southeast Gateway Line, North Hollywood to Pasadena Bus Rapid Transit Project, and Vermont Transit Corridor at ~100km.
Toronto gets to about ~90km including Eglinton and Finch.
* Ignored commuter rail because I have no idea what the status of GO Expansion actually is AND LA also has significant double/triple tracking, signalling, and grade separation projects underway to add 15 minute frequencies to ~300km of track and 30 minute frequencies to the other ~500km of track for the 2028 Olympics.
** Also ignored the California HSR and Brightline West projects which, both are under construction while Alto is not, puts the $dollar figure well above GTA too.