One block in the network


Marvin Lane is just one-block long, but it is one block in an important location in Northfield. Marvin Lane connects Washington Street and east side neighborhoods to Division Street/MN 246 and schools, downtown, and out of town. Marvin Lane is one block just at the point where the traditional street grid breaks down in favor of cul de sacs and dead end streets which make it an important connection between major north-south routes is particularly important for people choosing to walk or bicycle because of the lack of alternative routes and the poor sight lines for other streets to cross Division Street.

Right now, Marvin Lane is a 36′ wide street with 9 driveways, mature trees and no sidewalk. Marvin’s pavement is in such poor condition it’s almost a gravel road again, so its place on the 2017 reclamation list is overdue.

Marvin Lane and its connections in context

Sidewalks

The City Council held an improvement hearing two weeks ago to consider the list of 2017 reclamation projects. The Council was enthusiastic about adding the staff-recommended sidewalks to the Nevada/9th Street/Maple curve and asked about taking similar action on Marvin Lane despite the original staff recommendation not to add sidewalks to Marvin. Staff is bringing the issue back on Tuesday, February 21, asking for the Council to pass a Motion directing staff to update the 2017 Feasibility Report (all steps in the so-called 429 Process required to be able to use special assessments to fund part of the project) to incorporate sidewalk on Marvin Lane (The motion to update requires a simple majority; ordering the improvement will require 6/7 votes – an issue in previous sidewalk decisions).

Staff recommends adding the sidewalk on the south side of Marvin Lane and narrowing the street from 36′ to 32′ wide; this is a much better plan than originally offered. Moving curbs at all during street reclamation to help build better facilities for people choosing to bike or walk is a big step for Northfield and the outcome would be a street which is somewhat skinnier which could help slow traffic while making room for sidewalk on one side and preserving trees. The south-side sidewalk could then connect to future sidewalks on Division Street (and perhaps farther future sidewalks on Washington, Sumner and other points east). I’d like to applaud the willingness of staff to bring these types of changes to the Council and thank Council for asking for these steps.

Skinnier streets, slower traffic, and signaling priority uses

Just for fun and future decisions, how else could we think about this? We’ve got a one block street which is not a busy vehicle route, but is a connection we’d like to prioritize for people walking and biking. The big goal is creating a wonderful, highly connected transportation network (where transportation includes people of any age choosing to walk, bike, wheelchair roll, skateboard, etc.) which is well-integrated with the relevant surrounding land uses. For Marvin Lane or another short link prioritized for walking and bike in the network through a single-family residential neighborhood, we could consider:

(1) Forget sidewalks, how about shared space? The initial staff report stated the width of this street provides for both a mixed use of vehicles and pedestrians and sidewalks are not recommended. I think this means staff envisioned people walking in the roadway because traffic volumes are low and there is plenty of space for cars to pass anyone on foot or bicycle. But for people to be able to safely and comfortably walk in the same space as motor vehicles, vehicle traffic must be moving very slowly and which would be unlikely given such a wide pavement surface.

To make Marvin Lane really shared space, the City could deploy some major traffic calming measures to ensure residents could easily drive to their homes, the limited vehicle traffic could move through slowly, and people could walk without sidewalks (and fear). So, for example:

  • Add clear entrance/exit points at either end of Marvin Lane by significantly narrowing the road surface to signal to users they are entering a different kind of space where movement is slow. Since Marvin Lane connects to a state highway on Division Street, the west end would need to help users transition to (or from) the faster traffic, connect to current and future sidewalks and other facilities (like future bike lanes):
Neckdown, Toronto (Photo: www.pedbikeimages.org/Dan Burden)
  • Narrow the street width for the length of the block, or consider chicanes or other measures to calm traffic, encourage users to pay attention, and create places for additional trees (and rain gardens and other stormwater management)public improvements.
Chicane, Toronto (Photo: www.pedbikeimages.org/Dan Burden)

(2) Reallocating space to separate rather than share uses: 32 feet wide is still very wide with (thinking of motor vehicles only) space for two 12′ travel lanes and and 8′ parking lane (or two 11′ travel lanes and a 10′ parking lane) in addition to the one-side sidewalk recommended by City staff. For a one block connection where traffic should be slow and we’re prioritizing the walking and biking possibilities), how could the right of way be allocated differently to slow traffic and add space for people walking and biking?

  • Make the street skinnier to allow one (yes, just one) travel lane plus queueing areas/passing places for oncoming traffic and sidewalks on both sides. Or with two-way traffic, add neckdowns to slow traffic by creating a place where on-coming traffic must give way (but still let people to ride bikes through).
Neckdown with bike access (Grange Road, Cambridge, UK)
  • Put sidewalks on both sides: two (more than wide enough) 10′ travel lanes use up just 20′ of pavement which would seem to allow more than sufficient right of way to add sidewalks on both sides of the street.
  • Bike boulevard: For such a low volume, low speed link, separate bike lanes are less necessary even for young or inexperienced riders (I’d say bike lanes might make sense to connect to other bike lanes in the future, like on Division Street or Woodley Street?) as part of the network. But a bike boulevard would highlight the intention to prioritize people on bikes, add signage (like sharrows and street signs), and make Marvin Lane part of the bike route planning (that’s the hope anyway).
Colunbus, OH bike boulevard pavement markings

(3) Connections are critical: Decisions are usually made one project at a time which can lead to discontinuous and unconnected links rather than a network. Marvin Lane is, by itself, one block with low traffic volumes. Taken in context, however, Marvin is the first link north of Jefferson Parkway between Division Street and points east (with a cemetery, church and housing on non-continuous street in between), the street with the best sight lines for crossing Division Street, and a very useful connection to reach the High School, Sibley School, Senior Center, soon-to-be-improved 246/Jefferson area. If this block is redesigned for biking and walking now, it sets up future improvements for walking, biking and connectivity.

Bike Boulevard sign showing the network connections

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