Two people were transported to the hospital Tuesday, victims of separate collisions with vehicle drivers that left them injured.

In the first case, San Francisco Police Department spokesperson Officer Robert Rueca says that a 32-year-old female cyclist was struck by a hit-and-run driver at 5:40 p.m. Tuesday, near the intersection of Bay and Kearny Streets.

Rueca says that the cyclist was headed west on Bay when the driver of "a white vehicle" tried to pass her, and struck her instead.

The cyclist was knocked off her bike and injured, Rueca says.

The driver kept on going after striking the woman, continuing to travel west on Bay.

The cyclist was transported to San Francsico General Hospital for treatment. According to Rueca, a description of the suspect vehicle has been put out to officers, in hopes that the driver might be tracked down and prosecuted. The cyclist was transported to San Francisco Genera Hospital, for treatment of injuries police say are not life-threatening.

Just a few hours later, at 10:09 p.m., another collision occurred, this time at Market and Third Streets.

This time, police say, a 26-year-old man "fell into the street" and was struck by a passing vehicle. The victim was transported to San Francisco General Hospital, with injuries police say are not considered life-threatening.

Rueca says that the driver remained at the scene, and cooperated with investigators with SFPD's traffic collision unit, who are working to determine the exact circumstances of the crash.

Related: Ask A San Francisco Native: Have Bikes and Cars Always Hated Each Other?

The driver who allegedly ran a cyclist down in front of a large group of Bike to Work Day celebrants is out on bail today, following her arrest and booking into San Francisco County Jail Thursday.

According to the San Francisco Police department, the driver that they say ran over a cyclist after a brief verbal altercation during the Thursday commute is 18-year-old Oakland resident Taj'zanae Zakira Thomas.

As reported Friday, police say that at 4:55 p.m. Thursday, after a near-miss with Thomas' red Hyundai Accent, a 26-year-old male cyclist "banged on the window" of the vehicle, then passed the car and took his place in the lane in front of her near Fourth and Market Streets.

Police say that Thomas then ran the cyclist "over...with her vehicle" in what police characterize as an "Assault (Vehicle vs. Bicycle)"

According to the LA Times, Thomas "hit the man’s bicycle, knocking him over. She then drove directly over him and paused."

Witnesses, including volunteers from the San Francisco Bicycle Coalition who were facilitating Thursday's Bike to Work Day commute, told police that Thomas then attempted to flee, but was blocked from doing so by the crowd that had gathered after the collision.

Thomas was arrested at the scene, police say, and was booked into SF County Jail on suspicion of assault with a deadly weapon. According to a spokesperson with the San Francisco Sheriff's Department, she has since been released on bail.

Previously: Police: Teen Driver Assaults Market Street Cyclist With Car, Tries (And Fails) To Flee

SFPD: Bicyclist was a 48 year old male, riding between two buses in the same direction. pic.twitter.com/RqDptRbLBG

— Sergio Quintana (@svqjournalist) October 12, 2015

One cyclist is dead and another injured after two separate vehicle collisions Sunday. In one, a bike rider was killed beneath the tires of a Muni bus; and in the other a cyclist and horse trailer collided, leaving her injured.

According to San Francisco Police Department spokesperson Officer Grace Gatpandan, it was 3:22 on Sunday afternoon when police were called to the 500 block of Market Street (which is between Sutter and First Streets), on reports of a collision between a Muni bus and a cyclist.

"At this time," Gatpandan says, "it appears the both the bicyclist and bus were were traveling westbound on Market Street when the bicyclist lost control and collided with the bus."

Hoodline reports that the bike rider "maneuvered out of the sharrow lane to ride between two buses," and quotes SFMTA spokesperson Paul Rose as saying that "It does not appear the bicyclist was traveling in a bike lane." Which is an odd thing to say since, as Hoodline notes, "there is not a bike lane on that section of Market Street. Instead, one lane is designated to be shared by cars, Muni buses and cyclists."

After the collision, the rider, who Gatpandan describes as "a white male, 48 years old, and he was wearing his helmet," was wedged beneath the tires of the bus with which he had collided. He died at the scene. KQED has since identified him as Mark Heryer, a 48-year-old Berkeley resident.

"The cause of the collision is under investigation and no determination of fault has been made," Gatpandan says. "Investigators will take into account the time of day, road conditions, traffic conditions, as well as any video surveillance which may have captured the incident."

ABC7 reports that as part of the investigation, "people aboard busses were offloaded and questioned to see if they saw anything."

"We're pulling that vehicle as well to look at that video, but this is the coach where contact was made and we're working with the police department to do everything we can to find out what happened to deal with this the best way we can," Rose told ABC7.

The driver will also undergo drug and alcohol testing, as is protocol in all Muni collisions.

Gatpandan emphasized to CBS5 that "officers will conduct a thorough investigation because 'the victim can’t speak for himself.'"

"Don't try to pass a bus," Gatpandan also said to Hoodline, "especially in the streetcar lane. Stay to the right."

Sunday afternoon, the SFMTA released a "Statement of Condolences from SFMTA Director of Transportation, Edward D. Reiskin," which read in part that the transit agency "wish[es] to express our deepest sympathies and condolences to the family and friends of the cyclist who lost his life in a bus collision along Market Street late this afternoon."

"Our agency will work closely with SFPD to ascertain all facts of this truly unfortunate event," the statement read, noting that "The SFMTA adopted a Vision Zero Policy in 2014, with the goal of eliminating all traffic deaths in San Francisco by 2024. We are committed to working with our partners to make San Francisco streets safer, while educating the public on traffic safety, enforcement of traffic laws and prioritizing the necessary resources that implement life-saving initiatives."

The San Francisco Bicycle Coalition also released a statement on the fatality, saying that "We cannot achieve Vision Zero -- our City's goal to eliminate traffic deaths and severe injuries by 2024 -- without the three E's: engineering, education and smart enforcement."

"Today's tragedies demonstrate yet again that our City's elected leaders and agencies owe it to the growing number of people here who bike, and to the families of those who can no longer join them, to redouble their efforts and investments to deliver engineering solutions without delay, expand safety education, and ensure that the SFPD's priorities honor yesterday's tragedies and data through smart enforcement tomorrow," the SFBC wrote.

The SFBC uses the plural because less than 30 minutes later, there was a second collision between a cyclist and a vehicle. At 4:01 p.m., Gatpandan says, police were called to Chestnut Street and The Embarcadero.

When officers arrived, they discovered that a 46-year-old female cyclist "had collided with a horse trailer, suffering wounds to the head."

The cyclist was transported to San Francisco General Hospital with injuries that are not considered life-threatening, Gatpandan says. Hoodline reports that Gatpandan says she had been wearing a helmet, which "was a 'huge factor' in the woman's injuries not being life threatening."

"The driver of the truck remained on scene and is cooperating with police. At this time, investigators have determined drugs and alcohol are not a factor," Gatpandan says, but did not have additional details of that collision as of publication time.

Gatpandan says that both of these collision cases are "open and active," so anyone with information on either is encouraged to contact SFPD's Anonymous Tip Line at 415-575-4444 or to text a tip to TIP411 with SFPD at the beginning of the message.

Though San Francisco's Park Police District has only had its current leader for a couple months, folks pedaling through his territory had better make sure they follow every single rule and regulation — Captain John Sanford's already fed up with the area's scofflaw cyclists, and is ready to start meting out some justice.

Sanford abruptly took the top position at SFPD's Park Station at the end of March, saying in a message sent to community members that "I will encourage and embrace collaboration and partnership with the community. My goal is to foster a sustainable process with continuity, which will assist us with reducing crime and improving the quality of life for those who dwell within our borders.”

Apparently, one quality of life area in which Sanford sees room for improvement are bicyclists who break the rules. Reporting from Tuesday's Park Station community meeting, Hoodline says that Sanford has vowed "to step up traffic enforcement where bicycles are concerned," after growing aghast at some riders' disrespect for the law.

"I'm in an unmarked black police car, and they're just zipping past," Sanford said of bike riders.

"Bicyclists are required to follow the rules of the road...There's a thing called a stop sign that bicycles are supposed to stop at."

Bold remarks given the vocal nature of San Francisco's cycling community! But Sanford isn't afraid of those folks, saying "I am not too shy to say that it is a problem," and telling any cyclists who might be listening to "tell your friends to slow, stop and obey."

Sanford says that so far, 38 tickets have been handed out to cyclists this year, and riders should expect that number to grow. Park Station will deploy, Hoodline reports, "traffic enforcement teams [that] will consist of bicycle officers and marked police vehicles," all focused on catching bike riders who violate the rules of the road.

And before you ask, Sanford says that we shouldn't question the use of Park Station's notoriously limited resources for this activity.

According to Sanford, law-breaking cyclists "present a hazard for many people," and given that "the protection of life" is his top job, an enforcement effort like this one makes all the sense in the world.

Back in December, 2013, when BART ended their ban on bikes on their trains during rush hour, they told cycle-toting riders that there were still some rules that they need to follow. Now, some eight-odd months later, BART says that many cyclists aren't following those rules...but hastens to add that the transit agency, itself, might be to blame.

When BART's board voted last year to amend the bike rules, they agreed that:

• During peak commute hours (7 a.m. to 9 a.m. and 4:30 p.m. to 6:30 p.m.) bikes aren't allowed in the first three train cars


• No bikes will allowed in the first train car at any time


• Bikes are never allowed on crowded trains


• Bicyclists must yield priority seating to seniors and those with disabilities


• Bikes are not to block doorways or aisles


• Bikes are not allowed on escalators.

Sounds pretty doable, right (if it's not, please correct me in the comments)? But, according to the Examiner, cyclists persist in breaking those rules.

Before you scroll to the bottom of the article to post your angry remarks about cyclists, slow your roll: BART is taking the rap for this one.

Steve Beroldo, BART's bike program manager, told the Ex that "It's on us ... to do a little bit more communication about the rule...I think it's fairly clear that not everybody knows about it."

BART's plan to save folks from ignorance of the bike regulations? Signs that will be posted inside BART cars. But even signs come with their own set of challenges. As BART has a total of 11 rules for cyclists (that's one more than God gave Moses, for those keeping track), that's a lot of reading, Beroldo says.

"Car cards are a little challenging. We don't want the print to be too small...We would have to do a couple cards that highlight rules that we want people to be most aware of."

Multiple signs! Finally, something to read when your phone battery dies.

Previously on SFist: How To Bring Your Bike On BART Without Annoying Everybody Else

[SF Examiner]

A heads-up to all active and would-be bike thieves: SFPD will plant the city with bait bikes ready to tempt scheming ne'er-do-wells.

"We have bait bikes deployed all over the city. Our bikes have trackers. You steal our bikes and we will definitely come for them," SFPD Bike Theft Unit's warning shot declares. "If you think the bike you are selling on craigslist is stolen, then it probably is. Guess what, you are subject to felony arrest if/when we find you. Jail is waiting and your face will be all over social media."

The campaign will brand itself via stickers, asking/warning, "Is this a bait bike?" SFPD has printed 30,000 of these stickers to hand out.

Bike chop shops are serious problems in the city, one that the SFPD's Bike Theft Unit has worked hard at over the last year to squelch. Bait bikes will, presumably, help dwindle the amount of bike thefts in the city. (And, no, we probably won't see Bait Car-ish reality show anytime in the near future. Alas.)

An effort is underway to stop 20 blocks of much-needed bike lanes from possibly being installed along Polk Street. It's a tentative plan under serious consideration from the San Francisco Bicycle Coalition and the San Francisco Municipal Transportation Agency.

Tinged with hyperbole, the above flyer care of the Coalition to Save Polk Street was spotted along Polk. It urges people to "STOP the radical agenda of the SFMTA." (Oh dear.) And on March 18, a meeting will be held at It's a Grind in an effort to squash cycling and pedestrian improvements along the increasingly twee-ified strip.

In actuality, the bike lane project won't be 20 blocks. In fact, "it is likely to be limited to a shorter stretch of the street." Leah Shahum, executive officer of the SFBC, told the Chronicle that, while the proposal for Polk Street has yet to be selected, it would focus on improving both bicycle and pedestrian safety -- two issues lacking on Polk.

The SF Bicycle Coalition asked people to fill out a survey about cycling on Polk Street and about this rendering of a bike lane.When asked which factors make bike rides on Polk unsafe or uncomfortable, or make riders less inclined to take Polk, the top 5 responses were:

72%: Not enough separation from vehicles
45%: The roadway is uneven and bumpy
44%: The bikeway is inadequate or missing
30%: There are too many double-parked vehicles
26%: The light timing slows me down

When asked to divulge what survey part of the bike lane rendering they liked best, the top responses were:

91%: Bikeway separated from motor vehicles
62%: Green treatment of bikeway
44%: Widened sidewalks
34%: Reduction in the number of automobiles on the road

More information on bike safety along Polk can be found at SFBike.org.

Photo: John Vlahides

Sons of Science set their humorous ditty "Motherfucking Bike" to video. The result? This comedic amuse-bouche featuring a slew of San Francisco cyclist stereotypes. It could've been more pointed, sure, but it's delightful and won't bruise the chronically tender feelings of those who choose to ride two-wheeled machines of danger! Anyway, enjoy.

FILM: The captivating Apollonia will be live and in-person for a Q&A during Peaches Christ's "royally bad-ass purple pre-show" at the Midnight Mass screening of Purple Rain this evening. Attendees are of course encouraged to don their best "daytime lingerie, lace for days, and paisley prints," to name just a few examples. (7 p.m., Castro Theatre, 429 Castro Street)

ART: Fillmore is a happening street this weekend. The Fillmore Art Walk hosts several one-night only pop-up galleries from Eddy to Sutter, showcasing work by 60 artists and featuring live painting, video/DJ showcases, live music from 10 bands, and food/drink specials from participating restaurants in the neighborhood. (6 p.m. to Midnight, Fillmore, Eddy to Sutter)

BIKE: This month's SF Bike Party celebrates Pride Part Deux with another tour through the charming side streets and main drag of the Castro, then on to Dolores Park and the Mission. Sounds delightful! (7:30 p.m., Panhandle Basketball Courts, Oak & Ashbury)

On Friday, San Francisco Superior Court Judge Peter Busch lifted the city's bike injunction. What does this mean? It means that, more or less, San Francisco will get to paint more bike lanes on city streets, effectively making bike riding a bit more safer.

"We are celebrating San Francisco's freedom to once again make streets safer for everyone and look forward to real improvements on the streets in a matter of days," Renée Rivera, executive director of the San Francisco Bicycle Coalition, explained to Streetsblog. "This is the first time in San Francisco's history that this many bike lane projects are approved and ready to be striped. These long-awaited improvements will help growing numbers of people feel more confident, comfortable and safe when they bike to shop, to work and to play."

Sorry, Rob.

Anyway, this is good news. It will help keep the city's healthiest mode of transportation (next to walking) safe. The first post-injunction bike lanes will appear on Townsend, Laguna Honda and North Point.

Now if only something can be done about tourists riding rental bike on city sidewalks...

SFMTA sent out this helpful flier to warn drivers about incorrectly situating their vehicles while waiting to enter the Arco gas station on Fell, a move that effectively blocks the bike lane and forces cyclists into high-speed traffic.

Bike NOPA reports, "I've heard reports that once one driver gets in the queue, others follow, but the practice remains far from the norm. " Curbed goes on to point out, "the SFMTA has interns walking up to cars that block the bike lane on Fell street and giving them a flier and chatting them up about the situation."

Sunday Streets met with a Rock the Bike event at Ocean Beach on Sunday. Some sort of amplifier was attached to bikes, then said listening device was powered by the magic of pedal power. Many revelers from Sunday Streets (an event that's quickly turning into more of a cycling event, rather than a pedestrian-friendly one) stopped by to enjoy the music and dancing

Here are some shots from Sunday Streets and the makeshift stage at Great Highway. Enjoy.

Also, the next Sunday Streets will be on September 6, 10 a.m.-2 p.m., Great Highway Route that connects Golden Gate Park to the San Francisco Zoo, along Ocean Beach.

The benevolent souls over at Mission Mission came across this jarring, albeit all too common, story. It tells the tale of Jen, who, understanding that Mission Mission is the Dateline NBC of San Francisco, asked them for help. It seems that Jen and her boyfriend had this bike that "they both loved more than anything in the world," but it got stolen outside Safeway in March. Yesterday, however, it showed up for sale on Craigslist. (The ad has since been deleted.) Anyway, the comments section is fill with tips on how to check the DNA of your bike if you ever come find yourself in a similar situation. Jen, by the way, plans on getting her bike back.

Late this morning at around 10:45 a.m., there was a bike-car accident at Fell and Masonic. According SFIst reader Alex, it "seems like a Range Rover hit a bicyclist at the intersection. The fact that this happened after the new signals is just horrid."

No word yet on the condition of the cyclist.