tag:blogger.com,1999:blog-3300947294999806492.post1600800796528475527..comments2023-11-22T05:26:44.399-05:00Comments on Crossing the Lines: PLVI DriftSteve Stofkahttp://www.blogger.com/profile/14825368520377993845noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-3300947294999806492.post-49760050506557647532011-10-31T08:47:47.875-04:002011-10-31T08:47:47.875-04:00"PLVI" is a technical term among geograp..."PLVI" is a technical term among geographers. You're quite right in your instinct that it's the location of maximal job density. There's an entire theoretical body behind the idea of PLVI, but most of the research was compiled some time ago.Steve Stofkahttps://www.blogger.com/profile/14825368520377993845noreply@blogger.comtag:blogger.com,1999:blog-3300947294999806492.post-44139777699680204402011-10-29T22:36:29.389-04:002011-10-29T22:36:29.389-04:00I don't know what New York's PLVI is, but ...I don't know what New York's PLVI is, but it's seen shifts in the maximum job density. In the 1920s, as the subway system expanded, Midtown started to eclipse Lower Manhattan as the main CBD; this was partly due to grater proximity to where most people lived (Uptown, Queens, and the Bronx), partly due to an abundance of skyscraper-friendly geology, and partly due to the train stations. But then the CBD has kept creeping north. The maximum job density today is north of Grand Central, in the 50s; 34th may have Penn Station, Macy's, and the Empire State Building, but it's really at the southern fringe of the CBD.<br /><br />The CBD is even encroaching on parts of the Upper East Side and Upper West Side. Needless to say, job density drops like a stone north of 59th, but there are companies based on the UES and UWS and I'm fairly certain there weren't any in the 1950s.Alonhttps://www.blogger.com/profile/17267294744186811858noreply@blogger.com