Central City Mobility update

This is Central City Mobility Project update #21.

I have been backpacking and traveling, so not keeping up as much with the Central City Mobility Project. I may do updates on my days back in town, about once a week.

19th St: Paint and vertical delineators are mostly complete from H St to W St. Nothing has happened in the two blocks from W St to Broadway. Though pavement has been patched from Q St to W St, no other work has occurred.

21st St: Paint and vertical delineators are complete from W St to I St. No bicycle signal at I St, so the intersection of 21st St and I St remains extremely hazardous to bicyclists (and walkers).

P St: Paint and vertical delineators are complete from 21st St to 15th St.

Q St: Paint is mostly complete from 14th St to 21st St. Vertical delineators have been installed on some blocks but not others, probably due to materials shortages. Some crosswalks are missing.

10th St: Paint is mostly complete from W St to Q St (Q St to I St was already ‘complete’ before this project). No vertical delineators yet. The block from Broadway to X St has a traditional bike lane on the right, but no changes. The block from X St to W St, under the freeway, has a wide right side shoulder, but it is not a bike lane, nor is it marked as such. The parking-protected separated bikeway on 10th St is on the right side, because 10th St does not have bus service to be accommodated by a left-side bikeway.

9th St: Other than some patching, nothing has happened on 9th St. The new bikeway from L St to Q St will be on the left side. A construction project from L St to Capitol Ave closes the left side bike lane, and there is no accommodation for bicyclists. Though there is a bus area on the right, followed by a parking lane, it is not marked as a bike lane, nor is it safe as a bike lane. There is no signed on 9th St approaching L St to indicate that the bikeway ends, nor how to ride south. See photo below.

9th St at L St, no bicycle accommodation
9th St at L St, no bicycle accommodation

Another construction project from O St to P St closes the right side of the roadway, but the existing bike lane on the left hand side is still open. As previously noted, it is unlikely that the bikeway on 9th St will be installed until both construction projects are complete.

I St: Other than pavement patches, no other work has taken place. No-parking signs continue to be up even though no active work is occurring. Most blocks from 21st St to 12th St will be reduced from three general purpose travel lanes to two, but from 20th St to 19th St, and part way to 18th St, the three lanes will be retained. It is not clear why.

5th St: No further work has occurred.

Nothing has changed about the ‘turn wedges of death‘. A closer look at the design diagrams (thanks to the person who provided them) shows that the wedges at intersections of the separated bikeways are intended to have hard curbs, 4 inches with sloped sides (regular curbs are six inches or more) with stamped concrete interiors (style 3), but the other intersections will have ‘rubber speed bumps’, and vertical delineators. The bumps are apparently as shown in the photo below, though the photo shows a bump in the travel lane, and these are in the turn wedges. The bumps are 2.25 inches high, which won’t be even noticed by trucks and SUVs, though might be noticed and respected by passenger car drivers.

bikeways in Seattle

I was in Seattle in May, for Northwest Folklife, and am back again at the moment, reminded that I had not posted about transformations happening in Seattle. Seattle is, on the whole, a very traffic-y city with sparse bike facilities, but what is interesting is what they are doing with re-allocating roadway space to better use than motor vehicles. Bus lanes, wider sidewalks, protected bikeways, removal of parking. It is inspirational.

I have not been able to pin down whether it is official policy, but I can say for certain that the city is no longer installing paint-only door-zone bike lanes. Anywhere. All of the bike facilities are separated, some by car parking, some with planters, some with substantial vertical delineators. Almost all the new ones are either at roadway level and protected by hard curbs, or raised to sidewalk level and therefore separated from the roadway by curb and buffer strip.

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Central City Mobility update #12

I really am not sure if this is #12 on Central City Mobility Project, but close, so I’ll go with it.

Nothing has changed on 21st Street since the last post.

On 19th Street, some of the striping has been completed as far south at P Street. This is only white, long-line striping, none of the details have been painted. While riding 19th Street today, I was very nearly hit by a driver at O Street. The long-lines lead drivers to think that they have full width right of way, and to not expect bike riders to be coming out to pass the curb extensions at O Street. As I have said all along, I question putting extensions in locations with separated bikeways. It may be less dangerous once the detailed striping and green paint are installed, but it won’t be as safe as it could be if the city had simply not installed extensions on the east side of the 19th Street and O Street intersection.

A friend pointed out that the separated bikeway on 19th Street southbound is more than half in the gutter pan, and that the gutter pan is deteriorated in many locations. Therefore the effective width of the separated bikeway is not six feet, but about two feet. Smooth sailing for drivers, not for bicyclists!

19th St separated bikeway in the gutter pan
19th St separated bikeway in the gutter pan

As is true of every street that has been repaved, or patched, so far, the lane tabs have indicated that the general purpose lanes are very wide, and there are no bike lanes. Bike riders are now exposed to higher speed traffic (because of the very wide lanes), with not even the slight protection of paint.
Though this might be the fault of the project contractor, I doubt it. If the city had told the contractor to keep temporary bike lanes, they would have. I’m almost certain that the city did not say anything about accommodations for bicyclists to the contractor. The city is endangering bicyclists during this construction project, on purpose and with full knowledge. If someone is hurt or killed here, it will be on the city, and I hope they get sued for millions. The city philosophy, overall, for this project and every other construction project on streets and sidewalks, is that bicyclists and walkers don’t matter.

The city has claimed that they are now, finally, working on a construction accommodation policy. I suspect that it will come out very weak, because Public Works still believes strongly in cars-first. Traffic flow and ease for drivers controls all their decisions.

P Street has been repaved, but does not have any marking yet. Q Street has been patched, though I can’t tell if there is more to be done. A reader pointed out that there is some active work on 10th Street, but I haven’t gotten there yet.

A friend mentioned that traffic was a disaster when the city closed Q Street and 15th Street, with traffic backed up for many blocks. Though I did not observe this, I’ve had reports now from many people that the detour signage for this project does not provide drivers (or bicyclists) with any information about which way to go (the detour signs, I have observed, frequently point two directions, and the signage along the detours is incomplete. This could, possibly, be the fault of the contractor, but if the city was not out inspecting the detours and getting them corrected, the city was also failing. I have talked to a number of people on the street for whom this project has left a bad taste in their mouth. They have seen that the city has done a poor job of communicating with drivers, bicyclists and walkers, and there is a lot of doubt being expressed about whether the separated bikeways will actually be safer.

Lastly, I will note that there was no public outreach on this project. There are no plans available to the public. I am sure if there had been outreach, some of the design details would be different, some of the flaws would have been caught, communication would have been continuous and effective, and construction signing would have been done correctly. This was an internal Public Works project, and it was not done well.

where the bike lane ends – update

This is Central City Mobility Project update #11.

On Wednesday afternoon, the sign below was on 21st Street approaching I Street. The sign was not there on Tuesday morning. If a bicycle signal was intended at this intersection in the design, why was it not signed earlier? Why wasn’t the signal already installed, since there was signal communications infrastructure installed at this intersection several weeks ago? Or was this a design oversight that the city decided to fix after being called out on it? And when is ‘coming soon’?

21st St at I St, sign for future bicycle signal
21st St at I St, sign for future bicycle signal

I observed bicyclist behavior at this location for a while on Tuesday. Every single bicyclist who was headed north on 21st Street crossed against the red light, so as to not be hit by left turning drivers who generally do not yield to anyone in the crosswalk, and then onto the sidewalk on the west side of the street, continuing through the area at Old Soul Weatherstone which is congested with tables and walkers. So the city has trained bicyclist to ride on the sidewalk. Those who have been so trained will be likely to continue sidewalk riding even after installation of the signal. Ouch!

Useless Turn Wedges

I have ridden 21st Street a number of times, to see how the project is progressing and to see how drivers are responding to the new layout. Most drivers are parking correctly in the parking that provides parking-protection for the bikeway, but a few continue to park against the curb. I’ve reported these to 311 for parking enforcement, but of course as always, parking enforcement reports that the vehicle is no longer there, whether it is or not.

Several times in a row drivers have turned across my path at high speed, left from 21st Street to L Street, over the green paint and the white turn wedge paint. At the times of day I was there, there were few to no parked cars, so I was clearly visible to the drivers, not in any way hidden. In both cases I had to slam on my brakes to avoid being hit by the drivers. They did not slow. The turn wedge diagram provided on the Central City Mobility Project page, shown below, clearly shows bumps and posts (vertical delineators) in the wedge. Without more detail, I can’t say whether these will actually affect driver behavior, but in general only hard curbs or real bollards (steel or concrete) actually affect driver behavior. In the meanwhile, drivers are being trained to turn across bicyclists, with impunity, and will not likely change their behavior when and if something is installed in the turn wedges.

I have been reading Fighting Traffic by Peter Norton, and in Chapter 2 he introduces the concept of the outside left turn, which worked to prevent drivers from cutting the corner on left turns, and was later enforced with ‘silent policemen’, hard structures that provided serious consequences for drivers who insisted on cutting corners. Later, when motor vehicles were given dominance on the roadway, these were removed. It is time to bring these back!

Other

Striping and green paint is very nearly complete on 21st Street. 19th Street has been repaved and preliminary marking installed (the dashed white lines). P Street was just stripped for new pavement (I’m not sure what this process is called, removing 2 to 3 inches of old pavement so that new pavement can be laid), and is being repaved today (Thursday). Q Street has been patched but not stripped. I’m not noticing any active work on I Street, 5th Street, 9th Street, or 10th Street, though I Street has had ‘no parking’ signs up for some while.

The repaving is being done to the full width of the roadway, including the parking lane. This is a waste of materials and money. The parking lane does not need to be repaved, except in a few circumstances where it has been damaged. Nor does it need to be paved to the same standards as the general purpose travel lanes, which receive far more traffic and wear and tear. But the city loves pavement, and loves to add on unnecessary work to projects, ensuring that less is left for actual improvements to the street that would help walkers and bicyclists.

where the bike lane ends

This is Central City Mobility Project update #10.

The separated bikeway (protected bike lane) and repaving is mostly complete on 21st Street in Sacramento, part of the Central City Mobility Project. Almost all the white striping and green paint is complete. No vertical delineators (soft hit posts) yet. When I rode the street a few days ago, most vehicles were parked in the correct location in the parking spaces separated from the curb. There are two blocks where the bikeway is adjacent to the travel lane, and parking adjacent to the curb, between T Street and S Street, and between N Street and Capitol Ave. There is no obvious reason for this.

The beginning of the left side separated bikeway at W Street is marked oddly, see photo below. The arrow in the green turn box would imply that one should immediately turn onto 21st Street, when it should indicate to cross 21st Street the the bikeway on the other side. The shadow shows the correct move.

21st Street at W Street, green turn box with incorrect arrow
21st Street at W Street, green turn box with incorrect arrow

The ‘turn wedges’ noted in a an update post are is far only white paint, nothing that would prevent a driver from cutting the corner across the bikeway area. In fact, I observed several drivers doing just that.

21st St at T St turn wedge
21st St at T St turn wedge

The big concern is where the separated bikeway approaches I Street. The bikeway is on the left. Travel lanes are in the middle, one left turn only and one combined left turn-through-right turn. I Street becomes one-way westbound at this point, is two-way to the east, and 21st Street is two-way. Before repaving, the left side bike lane had a left turn arrow. The right side bike lane that was there before repaving is not there now, and it isn’t clear that there is intended to be. There is no warning that the separated bikeway ends at I Street, and no bike facility for transitioning to the right side to continue north on 21st St. This would be a good location for a bicycle signal to allow bicyclists to continue through the intersection on a bicyclist-only phase.

21st St at I St separated bikeway ends
21st St at I St separated bikeway ends

Central City Mobility update #8

Note: Info on 9th Street and 10th Street added below.

For other posts on the City of Sacramento Central City Mobility Projects, see category: Central City Mobility Project. I’m not sure how interested readers are in my minor updates, but I think it is fascinating to see how the city is repurposing street right-of-way, solving problems (or not), and what is being prioritized in the overall project. I’ve not seen any signs of construction on P and Q streets, other than the ADA ramp work that has been going on for several weeks.

Turn Wedge

The project page has a diagram that I had not exactly seen anywhere before, the corner wedge, below.

Central City Mobility Project diagram turn wedge
Central City Mobility Project diagram turn wedge

I saw a location marked for a turn wedge yesterday, at 21st St and O Street, southwest corner, below. This is a little bit like a corner of a protected intersection.

Central City Mobility Project marking for turn wedge at 21st Street and O Street
Sac_21st-St-O-St-SW_turn-wedge

5th Street Two-Way Conversion

I looked at the length of 5th Street, from Broadway to I Street. I still have no insight into what will be done under Hwy 50 where there is a one-way block that is closely tied to the freeway onramps. I have requested clarification from the city but they have not answered yet. I’ll update when I hear.

Signal bases have been installed for new signals from W Street to N Street, but not north of there. Active work was going on at N Street. At R Street, it looks like the existing pedestrian flashing light will be duplicated for the other direction. This is not a full signal, nor a user-activated signal, but always on.

Between Broadway and X Street, 5th Street is two-way, four lanes, with sharrows marked (and very faded) in the outside lane. Sharrows are no longer considered valid bikeway markings, so presumably there will be marked bike lanes here. There are three very-wide blocks for 5th Street, from N Street to L Street, and from J Street to I Street. From N to L, there are two through lanes and one or two left-turn lanes, plus parking and bike lanes. From J to I, there are two through lanes and two left-turn lanes, plus parking left and right and a bike lane on the right.

On the west side of the intersection of 5th Street and I Street, there is a crossing prohibition. I hope that the city removes this prohibition as part of the project. In most cases, freeways onramps and off-ramps being an exception, crossing prohibitions are an attempt by the transportation agency to prioritize motor vehicle volume and speed over all other considerations. They are morally wrong, and should be legally wrong.

5th Street north of N Street, very wide street
Sac_5th-St-N-St_extra-wide

I Street Separated Bikeway (and lane reduction)

Some work has started on the I Street separated bikeway, which will run from 21st Street to 12th Street (see the importance of I Street for why it should continue west). Most corner ramps were already ADA compliant, but the few that were not have either been upgraded or are in progress. Fabric covers have been set up over drain inlets, and temporary no parking signs line the street, so I assume repaving will occur soon. I don’t see any indication of whether the separated bikeway will be on the right side or left side of the street. I Street does not have SacRT fixed route bus service, which engenders left side bikeways, though there is some commuter bus service on the street.

The project map indicates that I Street will be “lane reduction and separated bikeway”, not parking protected separated bikeway, so this will be a different configuration than 19th Street and 21st Street.

I will be interested to see if the city will address the lack of sidewalk on the south side of I Street between 16th and 15th, where the city installed a loading dock for Memorial Auditorium in place of the former sidewalk. I strongly believe that removal of sidewalks, as was done here, are criminal (Sac permanently closes sidewalk).

19th Street Repaving

It looks at though 19th Street is not going to be completely repaved in the way 21st Street was, rather, it is getting spot repaving. I don’t know whether there will be an overlay so that the new marking are on a fresh blank canvas.

9th & 10th Street Parking Protected Separated Bikeway

The 10th street parking protected separated bikeway will be extended from Broadway to Q Street. The block of Q Street to P Street has a buffered bike lane, outboard of parking in the south half, and without parking in the north half, and since that block has recently been changed, it will likely stay that way. There is a buffered bike lane from Q Street to L Street, and then a parking protected separated bikeway of variable quality from L Street to I Street. There is no bus service on 10th Street, so the right side configuration will probably be maintained throughout.

10th Street is relatively wide under Hwy 50, so no special treatment here will be needed.

On 10th Street there are ADA ramp upgrades at several locations, and several more haven’t started yet. The street has a lower rate of ADA compliance than many central city streets. There is no indication of roadwork yet.

The 9th Street parking protected separated bikeway is being extended south from L Street to Q Street. There is no indication of any sort of work here yet. Most corners already have compliant ADA ramps. There is construction on the east side of 9th (right side southbound) between L Street and Capitol Mall, and on the west side (right side southbound) between N Street and O Street, and between P Street and Q Street. All of these construction projects will probably be going on for quite some time, and this may be the last street to be modified. SacRT Bus Route 51 runs on 9th Street south of Q Street to Broadway, which is outside this project scope, but presumably argues for keeping the left side bikeway configuration throughout.

Central City Mobility: 19th & O curb extensions

This is Central City Mobility Project update #7.

More information on the curb extensions (bulb outs) being installed on the northeast and southeast corners of the intersection of 19th Street and O Street, as part of the Central City Mobility Project. I questioned this location for curb extensions because 19th Street with have a parking protected separated bikeways on the left side (southbound) of 19th Street. (Central City Mobility update)

I received a response from the engineering firm for the project:

This is in response to your inquiry as to compatibility of the subject intersection revisions and parking protected bike lane. The design does account for the bulb outs at the intersection. Unfortunately, due to the space restrictions resulting from the bulb outs, it won’t be possible to provide parking protected all the way around the bulb outs. However, we are providing a transition of the bike lane at the intersection. Please take a look at the following striping design for the intersection. North is to the right with 19th Street running left to right. Hopefully this will give you a better feel for the plan:

Any reader of this blog will know that I love curb extensions. What confuses me is why this location would have been selected by the city over many other potential locations. Perhaps some of the reason it that the crossing at O Street has a moderately high walker count, but does not otherwise have a traffic signal or pedestrian signaling such as a RRFB. It is possible that the city thought these four corner curb extensions to be the most practical way of increasing safety for walkers and bicyclists crossing at this point.

The design of bringing the separated bikeway out adjacent to the general purpose travel lane, as a bike lane, is not ideal but not particularly unsafe. In fact some bicyclists prefer this design, because it increases the visibility of bicyclists by motor vehicle drivers, so that they are not ‘hidden’ behind parked cars. Though daylighting of the intersection approach can accomplish the same objective.

I would like to see green skip paint continuing through the intersection in the bike lane. These are often painted as discontinuous green rectangles with sharrows stenciled on top, called green-backed sharrows. The sharrows are out of favor with most bicyclists and some traffic engineers, I think this is a valid use of them. The main purpose of green paint (it has no legal meaning) is to increase driver awareness of bicycle facilities by highlighting conflict points, and this is definitely a conflict point.

A number of related posts are in the category: Central City Mobility Project.

more Central City Mobility Project

This is Central City Mobility Project update #5.

The City of Sacramento’s Central City Mobility Project is underway, and projected to finish by next May. The map below shows the major components of the project: new parking protected separated bikeways on 19th Street and 21st Street between W Street and I Street, extended parking protected separated bikeways on P Street and Q Street from 15th Street to 21st Street, a separated bikeway (not parking protected?) on I Street from 21st Street to 12th Street, and conversion of 5th Street from a one-way street to two-way from Broadway to I Street (the two-block section from L Street to J Street is already two-way). The project also includes upgrades of corner ramps to ADA compliance along 21St, 19th, P, Q and I streets. I notice that ramp upgrades are also occurring at some locations other than these streets, whether under this project or a separate initiative, I’m not sure.

Central City Mobility Project map
Central City Mobility Project map

As far as it goes, this project looks to be great. The city is making an effort to create a grid of higher quality bicycle facilities in the central city, of a mile spacing, or less. But a bicycle network is only as good as it’s weakest spot, and this project leaves several weak spots in the grid. The map below highlights some of these, shown in cyan color:

  • P Street and Q Street parking protected separated bikeways should be extended west to 5th Street, which would include a reduction of lanes on those streets. Stopping the bikeways at 9th and 10th Street reduces access to Sacramento Valley Station, as well as many other destinations in this area, including using the Tower Bridge to access West Sacramento.
  • 9th Street parking protected separated bikeways should be extended from Q Street south to Broadway, to provide access to the higher quality bikeway along Broadway, and points south of Broadway.
  • I Street separated bikeway should be extended from 12th Street west to 5th Street, created a complete bikeway from 21st Street to Sacramento Valley Station.
  • J Street parking protected separated bikeway should be extended east from 5th Street to 19th Street, to proved a complete bikeway from 5th Street to 28th Street.
  • A separated bikeway should be constructed on 28th Street to provide a high quality bike route parallel to the unsafe 29th Street one-way southbound traffic sewer and 30th Street one-way northbound traffic sewer.
  • Regular bike lanes, at a minimum, should be installed on 13th Street between P Street and Capitol Park. 13th Street is one of the most heavily bicycled north-south routes in the entire central city, but this two block gap makes that trip less safe.

It is also possible that the P Street and Q Street bikeways should be extended east at least to 28th Street, or beyond, but I haven’t looked closely at that yet.

Central City Mobility Project map with recommended additions
Central City Mobility Project map with recommended additions
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Central City Mobility update

This is Central City Mobility Project update #4.

The repaving of 21st Street between W Street and I Street is complete. The section has been marked with ‘temporary road marker tabs’ (these have various names). The marking is for parking lanes on both sides, of eight to ten feet, and ultra-wide general purpose travel lanes, of at least 16 feet. No bike lanes were marked, though the street previously had marked bike lanes. A typical move on the part of the city and its contractors, to take care of motor vehicle travel and parking, but forget about bicyclists. This is of course temporary, but state and federal law require accommodation of bicyclists in construction zones. No such accommodations was made.

21st St between J St and I St, ultra-wide travel lanes, parking lanes, NO bike lanes
21st St between J St and I St, ultra-wide travel lanes, parking lanes, NO bike lanes

There are temporary paint markings for the first several blocks north of W Street, showing what the paint configuration will be. The parking protected separated bikeway is, as was likely, on the left side because most of this stretch has bus service on the right. The bike area is about seven feet wide. The buffer strip of about three feet wide, and the parking lane is about eight feet wide. The buffer may or may have vertical delineators (soft hit posts) continuously or at conflict points. There is no indication at any location, so far, that there will be hard curbs to actually protect bicyclists when parked cars are not present. For information on why a seven foot bikeway is not sufficient, please see bike lane widths. NACTO recommends at least eight feet.

21st St temporary marking for separated bikeway
21st St temporary marking for separated bikeway

As I rode up 21st Street, I noticed that the bus stop is marked in the same way that the parking lane is. I hope this is just a temporary mistake, otherwise there will be parking in the bus stop despite the red curb. The city is still failing to do two things it can to better support transit: 1) install concrete bus pads so that the weight of the bus at the stops does not distort the pavement and cause potholes, and 2) paint the pavement red at each bus stop so as to make it clear that this is a place for buses only, and not private vehicles. And, yes, it would be nice if transit islands were installed so that the bus does not need to pull out of and then into traffic. The city keeps saying that it supports transit, but doesn’t actual do anything to support transit.

21st St bus stop, marked as though it were a parking lane
21st St bus stop, marked as though it were a parking lane

Lastly, in the category of ‘be careful what you wish for’… I had wondered why the city was not taking advantage of the ADA ramp project to put in curb extensions (bulb-outs) at some critical intersections for walker safety. This afternoon, I noticed that they are putting in curb extensions on the northeast and southeast corner of 19th Street and O Street. Yay? Nay? The problem is that the location of the extensions would extend into the separated bikeway on the left side of 19th Street southbound. The photo below, looking north along 19th Street at O Street, shows the extension under construction. There is supposed to be a curb-adjacent, parking protected separated bikeway here. I assume that bus stops for SacRT Route 62 southbound will be on the right hand side of the street, and the separated bikeway on the left hand side. Is there anyone paying attention? Anyone? Ferris? Anyone?

SacCity ADA ramps and Central City Mobility

This is Central City Mobility Project update #3.

I now know why all the of initial ADA ramp projects were on 21st Street. That is the first street being repaved as part of the Central City Mobility Project. 21st has been identified in the project for separated bikeways. Since there is a bus route on 21st (SacRT Route 62), I assume that the bus stops will be on the right hand side northbound, and the bikeway on the left hand side. The design shown on the project webpage shows a parking-protected separated bikeway on the left, along with a buffer zone (to protect against car doors opening). This seems to be the standard that the city has adopted, and side so far the city is placing separated bikeways only on roadways that also have bus service, presumably this design will be used in every case.

Another diagram indicates that there will be vertical delineators (K-71) in the buffers, but there are no details about the frequency. There’s are the delineators that are run over and destroyed by vehicle drivers on a regular basis, and these will suffer the same fate. The larger diameter delineators (NOT bollards, the city is incorrect in calling vertical plastic a bollard; bollards are made of metal or concrete, not plastic) that are now installed on part of J Street are not specified here. Though these don’t provide any more actual physical protection, they seem to raise doubts among drivers and get run over less often.

diagram of separated bikeway

There were several curb islands along 21st Street on the left hand side. All but one have been removed. The remaining one at 21st Street and Capitol Ave may just be an oversight, but if not, it is in the middle of what is expected to be the separated bikeway.

21st St at Capitol Ave SW corner curb islands
Sac_21st-St-Capitol-Ave-SW_curb-islands

The fourteen blocks of 21st Street from W Street to H Street has been stripped down about two inches, for repaving. The restriping after paving will include the separated bikeway.

The project webpage has a diagram for the transition of a separated bikeway on the left side of 19th Street southbound to the right side of 19th Street south of W Street, which is a two-way street. However, it does not have a diagram for the transition of this 21st Street separated bikeway at the north end, where 21st Street becomes a two-way street at I Street. This is already a hazardous intersection due to the double left-turn lane from 21st Street to I Street westbound.

Separated bikeways are only as safe as their intersection treatments, and the transition from and to separated bikeways to regular bike lanes are critically important. I hope that the city has a good design for 21St Street and H Street, otherwise bicyclists will be placed in more danger than existing conditions. The solution is of course bicycle signal faces that allow bicyclists to move when other traffic is held, but the city has been reluctant to use these.

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