DOT: The Barnes Dance Isn’t Usually the Best Tool to Make Intersections Safer

A DOT report recommends leading pedestrian intervals, split-phase signals, and physical improvements as other tools to protect people on foot from turning drivers.

All-pedestrian signals can delay buses and make sidewalk crowding worse at typical high-volume intersections like Seventh Avenue and 34th Street, according to DOT. Image: DOT
All-pedestrian signals can delay buses and make sidewalk crowding worse at typical high-volume intersections like Seventh Avenue and 34th Street, according to DOT. Image: DOT

DOT has released a report on the pros and cons of all-pedestrian signal phases — popularly known as Barnes Dance crossings — at city intersections. While Barnes Dance treatments can improve safety for people crossing the street, DOT prefers other safety treatments in most circumstances.

The report [PDF], which was prompted by the City Council, says all-way pedestrian signals work well in very specific conditions, including intersections with unusual layouts, crossings with diagonal desire paths, and intersections that are near transit hubs.

Depending on traffic patterns, Barnes Dances can delay buses and people on bikes, according to DOT, with cascading effects on nearby intersections. Longer pedestrian wait times can cause sidewalk crowding and lead to non-compliance with traffic signals, the report says, countering the benefit of reducing pedestrian-motorist conflicts.

The report cites a 2015 study of five Manhattan intersections, all near transit hubs and with high volumes of pedestrian traffic, which were candidates for all-pedestrian signals. At Seventh Avenue and W. 34th Street outside Penn Station, for example, DOT found that a Barnes Dance with a diagonal crossing would increase average wait times for all street users.

The report recommends leading pedestrian intervals, split-phase signals, and physical improvements like sidewalk extensions and pedestrian islands as other tools to protect people on foot from turning drivers.

There are currently 86 NYC intersections with all-pedestrian phases, according to DOT. The report says DOT will consider adding Barnes Dances at intersections with atypical geometry, intersections where most or all drivers make turns, T intersections, and intersections with low volumes of motorized traffic.

  • Guest

    T-intersections are the big one here. DOT has been horrendous at signalizing those, never formalizing the diagonal movement and often even giving pedestrians the don’t walk phase when the traffic is all stopped.

    They really ought to undertake a comprehensive review of all T-intersection signal timings. Lots of quick gains to be had there!

  • Alec
  • KeNYC2030

    What is DOT planning on doing at the highly dangerous intersection of W. 96th and West End Avenue, where CM Rosenthal proposed a Barnes Dance? The existing LPI is totally inadequate and DOT has so far rejected helpful physical improvements.

  • Where is the data showing before/after fatalities and injuries to pedestrians at any of 86 intersections equipped with all pedestrian phases?
    The author goes out of its way to highlight lack of pedestrian compliance, car delays and vehicle crashes, all of which needs to be put in the context of the # of fatalities and injuries .
    And the report ignores the flow improvements that will be realized when pedestrians conflicts are removed from the turning movements.

  • Lora Tenenbaum

    Agreed. Community Board 2 Manhattan asked the DOT to install split phase signals at Lafayette and Kenmare and at Lafayette and Broome back in 2014. Instead, it increased the pedestrian interval at Lafayette and Broome and ignored the T-intersection at Kenmare Street until a grade-school child posted a YouTube Video that shamed them into installing a turn signal. But conflict between pedestrians and turning vehicles is still allowed, and makes for a scary pedestrian crossing. Keep in mind that Kenmare Street and that section of Lafayette Street is a through-truck route, and those trucks are in a hurry to get out of Manhattan.

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