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Petru S. 🚄🚦🚲

@sofio.bsky.social
1.7K followers 348 following 475 posts

He/Him | NU 2028 (civil engineering) | *Posts/Likes/Etc. reflect my own views*

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Petru S. 🚄🚦🚲 @sofio.bsky.social · 23/09/2026
Loving what @streets.boston.gov has done here at Mass and Huntington. Due to construction the 4 lane road with bike lanes had to be narrowed. BTD decided to prioritize protecting bikes and peds and implemented a road diet in both directions to 1 lane.
Temporsry green paint and flex posts implement a construction road diet across a bridge
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 29/08/2026
Final separated bike lane markings coming to Broadway. Signal changes coming soon too. What an exciting time for #CambridgeMA. So much hard work went into this project, very exciting to see it come to fruition!
Floating bus stop island in two way bike lane at sunset Two way bike lane crosses diagonally. Temporary cones separate it and the lane is not fully painted yet One way separated lane laid out transitions into complete one way separated painted lane with flex posts Paint marks our lay out markings for Broadway
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 26/08/2026
Unfortunate branch placement
Branch covering the NO in NO TURN ON RED
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 24/08/2026
Credit where credit is due! Awesome stuff in Boston with a bike detour at Mass and Huntington
Jersey barrier and temporary green paint for bike lane Jersey barrier with temp bike and walking lane
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 16/08/2026
Love this quick build turn hardening island on Broadway in Cambridge!
Flex posts mark a turn hardening island on Broadway in Cambridge. Sunny photo with trees and in a residential community. Green traffic signals, a walk sign and a no turn on red sign exist at the intersection. The road is 2 lanes, one in each direction. Both directions have a bike lane, parking is off the curb. Both sides of the street have flex post separated lanes
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 12/08/2026
Cummins Highway is no joke. Wow. Best bike lane in Boston.
Sidewalk level 7’ wide bike lane with bioswales
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 20/07/2026
Exciting to see the new infrastructure in Ann Arbor, MI with @streetcraft.bsky.social . Nice application of actuated bike signals, cast in place concrete, and qwick kurb.
RRFB, islands, and raised bus stop on two way bike laneQwick kurb separated a bike lane with a bike signal. Railroad crossing with landscaped buffer for two way laneAdvisory bike lane approaching two way bike way
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 14/07/2026
London’s use of the 4” nearside signals to provide LBIs at every signal on cycle highways is such a nice touch. Very easy to do.
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 13/07/2026
Enjoyed cycling in London! Will post my thoughts after my trip. Some photos so far. Cycling on the left is not too bad!
Leading bike interval Mini bike signal Traffic light tree ! Signal separation with red balls (no arrows)
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 08/07/2026
Lovely day in Utrecht. 65km bike ride with @bicycledutch.bsky.social around Hilversum and Soest (amazing signaling there !). Then kayaked in Utrecht where a motorway became a canal, and ended the day with beers in Gouda with my friend Seamus. Simply perfect, gonna miss this place.
Me with the first Voorrangsplein in HilversumMark and I cycling in Dan Dorf on the F28
Kayaking in canal in UtrechtBeers in Gouda on a table outside in the Maakt
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 08/07/2026
I love watching Dutch signals cycle. The phase combinations they pick are so smart and optimized
Dutch signal from a view. Shows left and right green, through red.
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 07/07/2026
Been enjoying my time this week in the Netherlands. Here’s a clip from Amsterdam, cycling through a school and across to a park. Very nicely integrated!
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 18/06/2026
Went over to Boston to check out some updated separated lanes. Loving the new concrete separation! Cast in place is such a cool technology, looking forward to its further use in the region.
Cast in place concrete separates a one way bike lane on congress st. Under construction. Pre cast concrete curbs separate a bike lane from traffic on state street
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 07/06/2026
separated bike lanes for cats!
Bike rests next to my bike in a contraflow separated bike lanes Black cat rubs up against my leg while I’m on.my bike
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 13/05/2026
Always exciting to see new signals go live!
Leading bike interval for Western Ave at GreenTransit and bike signals on new bus only wayBike and turn signals in flash
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 11/05/2026
Great day in NYC! Love seeing these new 4” bike signals, rock blocks in ped spaces, and of course double wide bike lanes. Sadly couldn’t get the 3rd Ave green wave to work but we may have been on the wrong blocks at the wrong time! Curious if @nyc.streetsblog.org knows more.
Petru with a yellow 4” bike signalSeparated bike lane with Jersey barriers and blocks Double wide bike lane on 10th Avenue taken from high lineMe and friend on citi e bikes stopped at signal separation on 3rd Ave
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 23/04/2026
Exciting progress on #RiverSt! Looking forward to signal activation soon with new 4” bike signals along the corridor, FYART signals and bike green waves.
4” bike signal is the only bagged signal at the intersection of Franklin and river st
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 20/03/2026
Safe signals
A signal with a concurrent walk sign, no turn on red, and a protected only left turn phase
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 19/03/2026
Anyone know why almost if not all the flex posts are gone on the mass ave bridge? Cc @massdot.bsky.social
Flex post less mass ave bridge Flex post less mass ave bridge
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 11/03/2026
Massachusetts’s MUTCD amendments now has guidance that NO TURN ON RED should be the default approach to new signaled intersections in the commonwealth. This is great work @massdot.bsky.social !
MUTCD mass amendments SECTION 2B.6
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 27/02/2026
@streets.boston.gov please remove the pre cast curbs from the mass ave bike lane across from clear way street. This is a major safety hazard for all road users and someone will be hurt.
Curbs in the snow cleared separated bike lane
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 16/01/2026
I love my new job !
Me in a high vis jacket working at a traffic signal cabinet in Cambridge, MA
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 15/01/2026
What a gorgeous signal.
Inman square traffic signal
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 03/01/2026
Loving Arlington’s newest RRFB crosswalks that come with this white light that illuminates the crosswalk and pedestrian when the button is pressed. Makes the crossing so much more visible!
RRFB activated with a light flashing on a crosswalk. Photo taken in the dark, but thanks to the illumination from the device the crosswalk is lit.
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 03/01/2026
Witnessing a funny phenomenon on Hammond Pond Parkway today. I saw more or the same level of drivers wait at this red arrow without a No Turn on Red sign as I did see wait for the no turn on red sign. There’s something psychological about a red arrow that is stronger than a sign.
Traffic signal approach to tee with “NO TURN ON RED” marked. Traffic signal with right turn signal red arrow but no no turn on red
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 20/12/2025
Can anyone read this? Cc @massdot.bsky.social please replace the no turn on red sign at concord turnpike and park ave in Arlington!
Faded no turn on red sign on a traffic light
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 19/12/2025
Arlington’s first “raised crossing”. It happened by accident while installing new curb cuts, but it’s a happy one IMO! Excited to see more in the future with Mass and Appleton and others coming soon.
Difficult to see raised crosswalk with “SLOW BUMP AHEAD” signRaised crosswalk with crosswalk layout markings on it
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 16/12/2025
Some new signals in Portsmouth. Glad they kept the no turn on red restrictions but that signage placement is not ideal.
Flashing yellow arrow right turn signals with a no turn on red sign all the way left on the mast arm Green signals without a flashing yellow arrow oddly enough and a no turn on red and yield to ped sign
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 16/12/2025
Parking garage separated bike lane in Fenway
Flex posts a white line and green paint mark a 6’ wide bike lane and walking path in Fenway
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 15/12/2025
They forced everyone off my train at park street and the train is disabled. @universalhub.com
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 12/12/2025
Studying for finals now and thinking about my time in the Netherlands. Was so lovely to cycle there. Here are some photos from Amsterdam in July. Love to see high quality built-out infrastructure, can’t wait to build more of it in the US!
Voorrangsplein for bikes with trains through the centerBicycle cone with many cyclists at a greenBike lane next to train separated from roadway Bicycle cone in Amsterdam
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 30/11/2025
Lexington painted and extended their bike lane mass ave bike lane green! Green bike lane paint costs about 12 dollars a square foot sooo,, definitely a lot of money. But hey, good safety for intersections. Also added new blank out No Turn on Red, though the timing isn’t perfect on them.
Green bike lanes on mass ave. Dashed at intersections full everywhere elseBlank out no turn on red sign
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 09/11/2025
Grateful for @massdcr.bsky.social converting this signal at Matignon from a pedestrian signal to a full one featuring a blank out sign (that activates before the pedestrian phase !). Much safer intersection now!
Converted signal at Matignon and Alewife Brook Parkway complete with a no right turn blank out sign
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 29/10/2025
Shout out bus lanes!
Bus turn lane with bus in it. No cars in bus lane
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 06/10/2025
Review is in: Aberdeen’s new separated lane is amazing! Love being so close to the trees in the center of the roadway, and the transitions are well designed with minimal waiting.
Center running separated bike lane with huge trees in golden hourBike signals on either side to the entrance to the bike lane at Huron 4” bike signal nearside for the Aberdeen bike lane exit
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 26/09/2025
Never seen a no turn on red like that
Standard no turn on red sign and below a large yellow no turn on red sign hanging across
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 22/09/2025
Nice new bike lane on Vassar St
New flex posts separate bike lane on Vassar
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 29/08/2025
Nice new signal separation installed by @jfh01.bsky.social ‘s team on Mass at Tremont. Felt a lot safer crossing, though that no turn on red sign maybe could use a new location as it’s blocked by the turn signal!
Signals display a yellow thru, red left, and red right to protect pedestrians. There is a no turn on red sign but it’s blocked by a new right turn signal.
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 26/08/2025
Not sure how I feel about blank out signs being used for signal separation, but maybe it’s okay? The red arrow honestly gets the same compliance as a no turn on red sign in Boston in my experience (despite having no legal meaning).
Red arrow and bike signal that is green with a no turn on red electronic sign with a red dot. Bike lane goes to the right of the right lane. A Toyota Corolla uber is stopped at the red arrow
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 21/08/2025
Park Ave improvements can’t come soon enough
Audi A4 driver turning left in a crosswalk with stopped traffic, while cars queuing treat one wide lane is two making the crossing impassible
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 21/08/2025
New #RoadDiet in Woburn/Winchester on Route 3. Going,,, pretty well? Minus a few drivers who don’t know what’s going on.
Buffered bike lane replaced a travel lane on a 2 lane road. Pedestrian hybrid beacon at crosswalk. Hyundai hatchback driving in bike laneWide buffered bike lane takes place of secondary travel lane in Woburn on Route 3
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 20/08/2025
Glad I wasn’t seeing things in Waltham last night
Sun dog
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 19/08/2025
Substantial progress!
Black RRFB post taking place of the baseApproach on bikeway crossing showing two RRFB black poles with solar panel but no signage yet
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 17/08/2025
Some RRFBs coming to the minuteman in Lexington!
“RRFB” sprayed on ground with arrow pointing to a baseBikeway crossing with crosswalk, RRFB bases installed in the ground
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 10/08/2025
Happy to see this new signal separation in Boston along Western. And guess what, the compliance is good! That’s what happens when signals are well designed. Putting the right turn signal directly over the turn lane helps a lot. Wish it had backplates though.
A right turn signal is red with a bike lane and through signal green, with a green bike signal too. The separated bike lane is to the right of the right turn lane
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 09/08/2025
Nice work Boston/MassDOT !
Separated bike lane away from roadway on Bill Russell bridge
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 08/08/2025
I was impressed! West Newton has SBLs too that it connected to and so does Lowell, so good bike network is forming here
SBL with bike signals in west Newton
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 08/08/2025
Pretty excited about this new separated bike lane/shared use path on Washington street in Newton! Hoping it is extended to the entire corridor soon (:
Selfie of me biking in said lanePOV on bluebike in the two way separated lane with paint and posts and pre cast curbs separating bikes from traffic. Another cyclist is passing meTree planters to separate bikes from the roadway and add beautification
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 27/06/2025
Goodbye Massachusetts bike ride ): Will be living in the Netherlands on a study abroad for the following 5ish weeks; very excited! Nice to see the western Washington changes and the new bike signals along Broadway for the detour lane
Diagonal temporary bike crossing with bike signals in Cambridge Bike signal exclusive phase for temporary bike lane on Broadway at AmesProtected corner and greenery with no turn on red on western Washington at Dane in Somerville
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Petru S. 🚄🚦🚲 @sofio.bsky.social · 23/06/2025
Lovely day trip to Cape Cod today on the Capeflyer! Bike car was totally full, insane! Fun beach time, cycling, covered bridge mini golf and food! Also ran into some bike friends on the ride back ( @bikecommutema.bsky.social @dannickx.bsky.social !)
Me and my friend Amy biking along the cape cod canal, sagamore bridge in back round, along a 2 way shared use path next to the water Me with a golf club under a covered bridge mini golf holeMy friend Amy with a French toast panini at Beth’s Cafe in SandwichFull bike car on the train (blurry photo)
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