The cost of putting in a handful of pedestrian overpasses is trivial compared to the cost of a vehicle overpass. Pedestrian underpasses would be more expensive than overpasses, but still low cost compared to the flyway.
---
Highland and Somerville Ave are poor comparisons. They are not major arteries into Boston, and with a few exceptions (e.g. Somerville in Union Square) for the supermajority of their lengths' they are one-lane-each-direction. Highland is primarily residential with some mixed use and Somerville has sections of residential with primarily mixed use. Broadway is also not a major artery, mostly mixed use, and while it is mostly 2-lanes-each-direction from Winter Hill to points east, those are the worst parts to cross. Mass Ave is an artery, but let's be honest: any argument about Boston traffic that relies on Mass Ave's behavior is inherently flawed. For the relevant portions, all of those roads have (posted or legally de-facto) speed limits of 30 MPH or lower.
McGrath (and Rt 28 in general) is a limited access road, a major artery into Boston, has very few businesses with direct access to the road (rather than via a side-lane or side street), and speed limits over 35 MPH. If you're looking for comparisons, look more to the Jamaicaway or Memorial Drive. (Where, as far as I know, there are few if any pedestrian overpasses or underpasses, but having them would be reasonable and safer.)
![[community profile]](https://www.dreamwidth.org/img/silk/identity/community.png){kind=small}
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
no subject
Date: 2012-05-31 03:38 pm (UTC)---
Highland and Somerville Ave are poor comparisons. They are not major arteries into Boston, and with a few exceptions (e.g. Somerville in Union Square) for the supermajority of their lengths' they are one-lane-each-direction. Highland is primarily residential with some mixed use and Somerville has sections of residential with primarily mixed use.
Broadway is also not a major artery, mostly mixed use, and while it is mostly 2-lanes-each-direction from Winter Hill to points east, those are the worst parts to cross.
Mass Ave is an artery, but let's be honest: any argument about Boston traffic that relies on Mass Ave's behavior is inherently flawed.
For the relevant portions, all of those roads have (posted or legally de-facto) speed limits of 30 MPH or lower.
McGrath (and Rt 28 in general) is a limited access road, a major artery into Boston, has very few businesses with direct access to the road (rather than via a side-lane or side street), and speed limits over 35 MPH. If you're looking for comparisons, look more to the Jamaicaway or Memorial Drive. (Where, as far as I know, there are few if any pedestrian overpasses or underpasses, but having them would be reasonable and safer.)