Skip to main content

Five Years of Data Show: Our Street Safety Projects are Making a Difference

Five Years of Data Show: Our Street Safety Projects are Making a Difference
By Julia Malmo

Ever wonder about the effectiveness of projects after they go into the ground? Us, too!  

That’s why, in 2017, we launched the Safe Streets Evaluation Program to help project teams understand whether a transportation safety project’s design is effective, and where there might be opportunities to adjust the design if not. Project evaluation data can also be combined across projects to help the SFMTA track the effectiveness of a certain type of safety improvement, which can in turn streamline the design of future projects. The Safe Streets Evaluation Program helps us work towards achieving Vision Zero, an initiative to prioritize street safety and eliminate traffic deaths in San Francisco.  

This week, we’re looking back on five years of data gathered through our Safe Streets Evaluation Program with the “2022 Safe Streets Evaluation Summary,” an interactive website summarizing the results of 18 bicycle, pedestrian and traffic safety projects implemented since 2017. 

Each of the 18 projects evaluated in the summary report added significant safety upgrades to the streets. Some introduced vehicle travel lane removals (road diets), separated bikeways, separated bike signals, or left-turn traffic calming devices. Others brought general improvements for pedestrians at intersections including pedestrian signal improvements, daylighting (red zones at intersections) and upgraded crosswalks. For every project, the SFMTA drew on a wide range of data—from project-specific observations, to police reports, to speed data—to create a comprehensive view into its’ effectiveness. 

An infographic displaying the project names, key design element, and results. In the lefthand column, under “Inventory” the following projects are listed: 7th Street, 8th Street, Folsom Streetscape, Golden Gate Avenue, Leavenworth Street, Turk Street, Central Embarcadero, Valencia Street, 6th Street, Safer Taylor Street, Indiana Street, California Street, Page Street, Fell Street, Polk Street, Second Street, Masonic Avenue, Left-Turn Safety. In the center column, under “toolbox,” the following elements are listed: Road lane reductions, separated bikeways, bike signals, pedestrian upgrades, left-turn traffic safety. In the righthand column, under “results”, the following findings are listed: Collisions decreased by 18%; 85th percentile speeds decreased by 3%; bicycle volumes increased up to 75%; vehicle-bike interactions at signals decreased by 93%; vehicles blocking the bike lane decreased by 90%; pedestrian-vehicle close calls decreased by 38%; vehicle travel time increased an average of 50 seconds for 7.3 miles of road lane reductions; left turn vehicle speeds decreased by 17%

The evaluation report indicates that the SFMTA’s safety tools are working together to create safer environments for all modes of transportation on city streets. 

You can dig into the whole set of outcomes on the website, but here are some highlights:  

  • Within the projects evaluated, annual collision rates decreased by 18%  

  • Bicycle-related collision rates decreased by 33% and pedestrian-related collision rates decreased by 32%   

  • Bicycle volumes on streets that received bicycle improvements increased up to 75% in the morning peak (8 AM to 10 AM) commute times, with similar growth in the afternoon/evening peak (4 PM to 6 PM) commute times.   

  • Thanks to protected bikeways, the rate of incidents of vehicles blocking the bike lane decreased by 90%.   

  • Close calls or near misses between pedestrians and drivers decreased across evaluated projects by 38%.  

  • Several projects in under-served communities such as the Bayview and Tenderloin are helping to address historic inequities and under-investment in these neighborhoods.   A table titled “Aggregate Project Findings Across Evaluated Projects”. At the top of the table, a blue bar lists out the column titles: Measure; Metric; Overall Findings; Capital Findings; Quick-Build Findings. In the Collisions section, the following sub-categories are evaluated. For Annual Collision Rate: Overall findings show an 18% reduction; Capital Findings show a 19% reduction; Quick-Build Findings show a 17% reduction. For Annual Bike-related collision rate: Overall findings show a 33% reduction; Capital findings show a 5% reduction; Quick-Build findings show a 42% reduction. For Annual Pedestrian Related Collision Rates: Overall findings show a 32% reduction; Capital findings show a 50% reduction; Quick-Build findings show a 26% reduction. In the Vehicle Speed section, the following sub-categories are evaluated. For 85th Percentile Speed: Overall findings show a 3% reduction; Capital findings show a 5% reduction, and Quick-Build Findings show a 3% reduction. For Max Speed Change Observed: Overall findings show a 20% reduction, and no data is present for either Capital Findings or Quick-Build Findings. For Vehicle Travel Time/Vehicle Travel Time in Seconds: Overall findings show 50.00; Capital Findings show 221.00; Quick-Build Findings show 21.50. For the Bike Volume section, the following sub-categories are evaluated. For AM Bike Volumes: Overall Findings show a 75% increase; Capital Findings show a 187% increase; Quick-Build findings show a 41% increase. For PM Bike Volumes: Overall Findings show a 72% increase; Capital Findings show a 107% increase; Quick-Build Findings show a 62% increase. In the Bike Signal Interactions and Close Calls section, the following sub-categories are evaluated. For Bike-Vehicle interactions: Overall findings show a 93% reduction; Capital findings show no data; Quick-Build findings show a 93% reduction. For Close Calls (near misses): Overall findings show a 62% reduction; Capital findings show no data; Quick-Build findings show a 62% reduction. For Average Daily Interactions Post-Implementation: Overall Findings show 2.2; Capital Findings show 0.3; Quick-Build Findings show 3.1. For Bike Compliance w/ Bike Signal: Overall findings show 87% compliance; Capital Findings show 86%; Quick-Build Findings show 88% compliance. For Vehicle Compliance w/ No Turn On Red: Overall findings show 90% compliance; Capital Findings show 86% compliance; Quick-Build findings show 92% compliance. In the Blocking the Bikeway section, Rates of Incidents was evaluated. Overall Findings show a 90% reduction; Capital Findings show a 19% reduction; Quick-Build Findings show a 90% reduction. In the Vehicle-Pedestrian Close Calls Section, Close Calls (near misses) were evaluatd. Overall Findings show a 38% reduction; capital findings show a 0% reduction; quick-build findings show a 34% reduction

The Safe Streets Evaluation team will continue to think creatively about how to build on the evaluation work and use it to inform our current and future projects, programs, and practices through developing a publicly accessible database of all Safe Streets Evaluation data and finding better ways to evaluate project outreach efforts. 

View the 2022 Safe Streets Evaluation Summary 

Learn more about the SFMTA Safe Streets Evaluation Program: SFMTA.com\safestreetsevaluation 

 



Published November 08, 2022 at 04:26AM
https://ift.tt/jcWqtYF
Labels:

Comments

Post a Comment

Popular posts from this blog

New top story from Time: Tom Brady and Gisele Bündchen Take Equity Stake in Crypto Firm FTX

https://ift.tt/2UQsN09 Celebrity couple Tom Brady and Gisele Bündchen have taken an equity stake in crypto firm FTX as part of a long-term partnership, marking the duo’s newest foray into the world of digital assets. Both Brady, a celebrated American football player, and Bündchen, a world-renowned supermodel, will serve as ambassadors for FTX, according to an announcement Tuesday. The cryptocurrency exchange declined to disclose their equity stake, but did say they will both receive an unspecified amount and type of crypto. Bündchen will also take on the role of FTX’s environmental and social-initiatives adviser, according to the release. “Tom and Gisele are both legends and they both reached the pinnacle of what they do,” Sam Bankman-Fried, founder and chief executive officer of FTX, said in a phone interview. “When we think about what FTX represents, we want to be the best product that is out there.” [time-brightcove not-tgx=”true”] FTX, with 29-year-old Bankman-Fried at...
Post a Comment
Read more

Rakesh Tikait viral video shows him asking farmers to enter Delhi with lathis - Watch https://ift.tt/3cdtQh8

An undated video of Bhartiya Kisan Union spokesperson Rakesh Tikait has gone viral, wherein he is seen asking and appealing to his supporters to be armed with lathis for the Republic Day tractor rally, and be prepared to save their land. In the video, Tikait could be heard saying "The government is not listening. Come with your sticks and flags." After a pause, Tikait is asking his supporters to 'understand his words, come along with tiranga atop lathis'.  
Post a Comment
Read more

FOX NEWS: Man who went viral for eating Chipotle in all 50 states says he ‘never got tired of it’ Wyatt Moss, 19, went viral earlier this year for eating Chipotle in all 50 states in just 50 days with two friends.

Man who went viral for eating Chipotle in all 50 states says he ‘never got tired of it’ Wyatt Moss, 19, went viral earlier this year for eating Chipotle in all 50 states in just 50 days with two friends. via FOX NEWS https://ift.tt/3mXMUnu
Post a Comment
Read more

New top story from Time: At Donald Trump’s Republican Convention, It’s a Family Affair

https://ift.tt/3aXnO1y Two days in, and the Republican National Convention looks a lot like a Trump family business. Just as Donald Trump worked closely with his children at the Trump Organization, numerous members of the President’s immediate family, including all four of his adult children, are speaking throughout the week at the RNC to advocate for his re-election. On the first night of the convention, the president’s son Donald Trump Jr. spoke, as well as Don Jr.’s girlfriend Kimberly Guilfoyle. First Lady Melania Trump headlined the second night, with President Trump sitting in the front row to watch her speech in the Rose Garden. The president’s children Tiffany Trump and Eric Trump both spoke before Melania on Tuesday, and a list of speakers sent out by the Trump campaign ahead of the week’s events also has Ivanka Trump and Eric’s wife, Lara Trump, scheduled to speak. Trump has long valued loyalty among his closest associates above all else, and only a small group...
Post a Comment
Read more

New top story from Time: George Floyd’s Family Reacted to the Verdict With an Uncontrollable Cry. That Sound Echoes Through Black America

https://ift.tt/3v5VXVM There are sounds that humans make with intention. Then there are the wordless sounds we make when our emotions take over—the sounds that, in their texture and tone, speak even more clearly. Guilty , Hennepin County Judge Peter Cahill said, as he read the jury’s April 20 verdict on the first of three charges leveled against former Minneapolis police officer Derek Chauvin in the murder of George Perry Floyd Jr. That’s when I heard those involuntary sounds come up and out. Painting by Ange Hillz for TIME It was the collective sound of shock, filtered through deep pain, followed by relief. It filled a third-floor Hilton Hotel ballroom, where Floyd’s family watched the local NBC station on a movie theater-sized screen. Many had come from distant places for this moment—Houston, Charlotte, N.C., New York City. They’d carefully slipped away from the direct stares of the overwhelmingly white press that had begun to tail and track them. (Photojournalist...
Post a Comment
Read more

PM Modi to address farmers today, transfer Rs 18,000 crore to nine crore families https://ift.tt/38A74wz

Prime Minister Narendra Modi will address farmers via video-conferencing as the Bharatiya Janata Party plans to scale up the outreach plan amid the ongoing farmers protest over the new agri laws. The Prime Minister will also release the next installment of financial benefit under Pradhan Mantri Kisan Samman Nidhi (PM-KISAN) of more than Rs. 18,000 crore to more than 9 crores beneficiary farmer families.
1 comment
Read more

FOX NEWS: Halloween warnings issued of cannabis products 'impersonating' major snack brands Attorney Generals from Connecticut and Ohio issued warnings about THC products packaged to look like major snack brands.

Halloween warnings issued of cannabis products 'impersonating' major snack brands Attorney Generals from Connecticut and Ohio issued warnings about THC products packaged to look like major snack brands. via FOX NEWS https://ift.tt/3EjjdnW
Post a Comment
Read more

AP ICET 2020 result declared; 40,000 candidates clear exam https://ift.tt/3kPRxgy

The Andhra Pradesh Integrated Common Entrance Test (AP ICET 2020) result has been announced at the Andhra Pradesh State Council of Higher Education. Nearly 40,000 candidates cleared the AP ICET 2020, whose results were declared on Friday. Candidates who appeared for the exam can check their results by visiting AP ICET - sche.ap.gov.in.
Post a Comment
Read more

FOX NEWS: Miniskirt named 'most iconic fashion statement of all time' in British survey

Miniskirt named 'most iconic fashion statement of all time' in British survey It’s official: Nobody remembers your sweet Members Only jacket from 1983. via FOX NEWS https://ift.tt/2yTg1Dn
Post a Comment
Read more

Suresh Raina booked by Mumbai Police for breaching Covid protocols at nightclub https://ift.tt/3mk0cs3

Former Indian cricketer Suresh Raina was among a number of celebrities booked by the Mumbai Police after it conducted a raid at a pub late on Monday.  
Post a Comment
Read more