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Showing posts with label markings. Show all posts
Showing posts with label markings. Show all posts

Friday, November 6, 2020

Bad Markings

This shared-use path becomes precariously narrow on the bridge over the Bronx River. It is barely wide enough to comfortably ride; forget trying to pass anybody else. The thing is, there is some residual roadway space that could be repurposed to fix this problem.

The path drops from a full 14-feet-wide shared-use path
right at the bridge

Monday, February 9, 2015

Stolen Space and Leftover Space

The 52nd Precinct steals space from the community every single day. The inconvenience and the perception that the police lack respect for the law create an ongoing source of tension with the community the NYPD is supposed to serve. A review of the conditions surrounding the precinct demonstrates that parking could, in fact, be managed satisfactorily with a little professional attention and a basic level of discipline. The parking is, in fact, illegal, and the NYPD has an obligation to restore order both to maintain its own integrity and to relieve the burden on the community that hosts the station house.

Unlike many station houses in New York City, the 52nd Precinct has its own off-street parking lot. This is not a cheap piece of infrastructure, either, since it is largely on a deck over the MetroNorth Railroad. Additional exclusive parking has been created with parking regulations that dedicate the curb lane on the east side of Webster Avenue to the precinct. Yet this is not enough to keep the East Coast Greenway clear of parked cars.

These cars are parked on a shared-use path
that is part of the East Coast Greenway
Over the years, every commanding officer and the Community Relations officers have consistently said they plan to repave and stripe the parking lot to increase the amount of parking by reducing the space generally lost to an inefficient ad hoc layout, as well as drivers supposedly trying to avoid mud puddles. Yet after years, there has been no change. The only maintenance ever performed on the lot is to periodically fix the fence posts when drivers have damaged it again (a sign that is not particularly encouraging about the driving abilities of the officers who cruise the neighborhood all day long).

Thursday, January 22, 2015

Poor Scoping Leaves Residual Space

It is encouraging to see New York City developing more sustainable stormwater management. Unfortunately, the recent bioswale constructed on Bronx Park East at Pelham Parkway earns a grade of "D" as an urban infrastructure project. Poorly scoping the project left residual spaces and diminished functionality, which will ultimately be more expensive and disruptive to address later.

The bioswale detains storm water that would otherwise increase combined sewer overflows
The hatched area to the right probably could have been unpaved as well

The hatched area at this end is also useless, leftover space
It should be an active space as a refuge island as part of the greenway connection


Wednesday, November 12, 2014

Filling the Void, Maintaining Sight Lines

When cars park too close to the corner, drivers and pedestrians often cannot see each other well enough to make safe decisions. To correct the problem, parking is frequently prohibited near intersections to improve sight lines, a practice sometimes referred to as "daylighting." Nevertheless, regulations cannot actually prevent the hazardous conditions from continuing. The public and even some enforcement agencies seem to have a low level of awareness or appreciation for the need to keep these locations clear, and the residual nature of these spaces continues to be problematic.


In an effort to improve the situation, enhanced markings are often used to reinforce the regulatory signage. Even with this effort to emphasize the regulations and create some illusion of occupancy, the space continues to feel unused. In an active urban environment, a space marked off for the sole purpose of a sight line really is, in practice, underutilized. The demand to make more intense use of it is probably inevitable.

The solution to these residual spaces is to provide them with uses that do not compromise the sight lines. To be effective and persuasive enough to continue installing them elsewhere, treatments must embrace uses that are appealing to the community.

The classic response is to install a curb extension, sometimes called a "neckdown." These rely on the curb as a physical barrier that effectively discourages parking. They also provide benefits for traffic calming and shortening crossing distances for pedestrians. A curb extension is an expansion of the sidewalk, creating more usable space for pedestrians, although they may recognize relatively little value in the extra panels of concrete. This solution is often complicated, though, by mundane engineering details like drainage or even traffic signal location. Capital costs can discourage or delay construction.

Saturday, May 24, 2014

Conflicted Crosswalks: The Grand Concourse


You know it's bad when they put up the You're-gonna-die signage.


Getting across the Grand Concourse in one piece can be a challenge. The combination of long crossing distances and multiple conflicting movements from split side streets gives turning drivers seemingly endless possibilities to take a shot at you. And virtually every car on the cross streets are turning (through traffic bypasses the intersection by passing below the Grand Concourse).

Even with the challenging physical conditions presented by these intersections, there seem to be some easy improvements that might help pedestrians. High-visibility crosswalk markings are one example. There may be opportunities to make the yield signage more visible to motorists and locate it to better influence behavior before drivers make their decisions. The signal timing should also be reviewed to give pedestrians a head start.

Saturday, April 5, 2014

Connecting Neighborhoods Across Mosholu Parkway

Mosholu Parkway is a great shared civic space between the Bedford Park and Norwood neighborhoods. One of the aspects that first impressed me about this area was the groups of older men who walk together and talk on the parkway. Yet while the parkway is a place where the community comes together, it also acts as an inconvenience for movement between the neighborhoods.


There are some long stretches on Mosholu Parkway between intersections, which are the only locations where pedestrians may legally cross the roadways. At several of the intersections, pedestrians are confronted with regulatory signs prohibiting them from crossing at certain corners, imposing yet more limitations on their ability to get around easily.

These locations where pedestrians are prohibited from crossing should be changed. Prioritizing the turning movements of drivers cutting through the community over the residents walking between neighborhoods is the wrong choice. At these locations, the prohibitions appear to do very little to benefit the drivers anyway. The volumes of turning vehicles and pedestrians appear modest enough that allowing pedestrians to go where they want should not create any real problems with turning delays.

Saturday, December 28, 2013

Paint the Town


Transportation engineers have long been painters, although the markings they have applied in white and yellow are not something anyone has ever recognized as artwork. Of course, they never intended for their functional markings to be a visual art (although their engineering work can be as much art as science at times). I find it interesting to note the pallet they use has been expanding in recent years, and our cities are gaining a little more colorful accent as a result. In some cases, transportation agencies are even using paint to create public art in places that have traditionally been mundane or outright unsightly.

Here's a quick rundown of the color pallet used for functional markings, a note about incorporating art to mitigate the unattractive spaces sometimes created by transportation, and some discussion of the limitations of paint.