green wave

A “green wave” is a traffic signal sequence set so that vehicles will encounter green lights for some distance, so long as they are traveling at the selected speed. A green wave can also be set for bicycle speeds, though it very rarely has been, and never in Sacramento.

To some degree, all signals are set this way, though the degree and distance of sequencing varies widely. Many of the east-west streets in the Sacramento grid have signals set for motor vehicles, and when traffic is not congested, it may be possible to go all the way across downtown and midtown on green lights, for example on J Street. Very few north-south streets are set this way, I can think of only the 15th & 16th couplet, and the 9th & 10th couplet. At intersections with the east-west couplets, these north-south couplets seem to have their green wave broken. Only if the grid spacing and the selected speed calculate out is it possible to have a green wave in all directions. Sadly, many signal sequences in the Sacramento region are set above the posted speed limit, encouraging drivers to speed so that they make all lights.

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SacRT: bike storage at light rail

bike lockers at SacRT light rail Glenn station in Folsom
bike lockers at SacRT light rail Glenn station in Folsom (SacRT rental, BikeLink, bike racks)

If you are a light rail user, you may have noticed bike storage lockers at some of the stations. Two types of lockers exist:

  1. rental lockers at 19 SacRT light rail stations, which are listed on the SacRT “Biking with RT” webpage
  2. on-demand lockers at 3 SacRT light rail stations in Folsom, plus the Folsom Pedal Stop bike station

The rental lockers work well for people who routinely commute the same route to and from work, and are leased for 6 months or 13 months at pretty reasonable rates. The downside to rental lockers is that they can be used by only one person, and are empty when not in use by that person. Mike Mattos, SacRT Chief of Facilities & Business Support Services Division, said that these lockers were mostly purchased at the time of rail extensions, and they are repaired and replaced from operating funds. They move lockers from one station to others as demand changes. They have explored on-demand systems, but have not installed any because they don’t feel that any vendors so far meet their criteria. He pointed out that the downside of on-demand systems for typical commuters is that they don’t then have a guaranteed space at their station.

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Choosing streets to bike

20130817-131452.jpg
M Street bike route
As I said yesterday, I choose primarily two-way, two-lane streets to walk on, because they offer a quieter and calmer place to enjoy walking, looking around, and finding businesses to frequent. When bicycling, I’m more likely to be going someplace specific, and more likely to be in more of a hurry. If given the time, I’d almost always rather walk than bike, but bicycling certainly saves a lot of time, and so I bicycle more than walk.

The first criteria for choosing streets to bike on is traffic speed. In the grid, nearly all of the streets are posted 25 mph, but traffic speeds vary widely from 20 to 40 mph. When a street is designed for 40 and then posted for 25, motor vehicle drivers respond by going 40. Again, this is a street design issue. I am not afraid of 40 mph traffic, and I am OK mixing in with it – I’m a vehicular bicyclist, but why, when I don’t need to? So I pick other streets.

First preference is quiet streets with a design or signing welcoming to bicyclists. Best example is M Street in East Sacramento, my usual route to and from Trader Joes, and also when I jump off the parkway at Sac State and continue into downtown/midtown. Streets like M are the closest Sacramento has to bike boulevards or neighborhood greenways.

Second preference is narrow streets without bike lanes. Why? Because the traffic moves slowly on these streets, sometimes below the posted speed. Since I’m now treating stop signs as yield signs, the more frequent stop signs on these streets don’t slow me down very much, there are few vehicles to take turns with except at two brief times of day. Parking along these streets helps a lot, particularly when it is diagonal, because parked cars create friction that slows drivers.

Third preference is streets with bike lanes. But often these are higher volume, higher speed streets. If I’m really in a hurry, these are the streets I use. Fewer stop signs and fewer signals make for a faster trip. In that sense I’m making the same decision as car drivers.

Choosing streets to walk

business on a two-way, two-lane street (Capitol at 18th)
business on a two-way, two-lane street (Capitol at 18th)

I walk a lot in midtown, going to and from various destinations such as the train station, nonprofits and agencies I work with, grocery stores, theatres, farmers markets, breweries, etc. I was thinking last night as I walked to and from Capital Stage about what streets I choose to walk on.

Almost all the time I choose to walk on two-way, two-lane streets. I rarely choose to walk on the multi-lane streets and the one-way streets, except for short distances as I zigzag to my destination. The two-way, two-lane streets are usually quieter, less traffic and traffic moving more slowly. I can relax more with the quiet, and I can look around more, paying more attention to everything around me and not just traffic.

Why is this significant?

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Teaching children to cross

children crossing, Fauntleroy at Alaska, West Seattle (Seattle Bike Blog)
children crossing, Fauntleroy at Alaska, West Seattle (Seattle Bike Blog)

Streetsblog today posted an article “Our Streets Fail to Work for Children” which referred in turn to articles from Akron and Seattle. I commented on the Seattle Bike Blog post “We are failing our kids: A look at Seattle’s terrifyingly normal streets,” but I’d like to amplify my comments and specifically talk about pedestrian education.

Poor pedestrian infrastructure, as documented in these posts, is everywhere, more so in the suburbs and rural areas than in urban areas, but everywhere. The problems include:

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bike share for Sacramento

Washington DC's Capital BikeShare
Washington DC’s Capital BikeShare

Another major happening this last week in Sacramento was the announcement of progress in bringing bike sharing to Sacramento.

Chris Morfas presented to the SACOG Bicycle and Pedestrian Advisory Committee on progress in bike share. Fehr & Peers is writing a business plan for the Sacramento Metropolitan Air Quality Management District. The business plan will include solutions for serving low income people and those without access to credit cards or smartphones (most systems depend on one or both of these to operate).

Participants in the annual Cap-to-Cap trip to Washington DC, hosted by Sacramento Metro Chamber, experienced the new and highly successful bike share program there.

The bike share business plan should be completed by mid-summer, and the partners will then seek capital funding from SACOG and possibly private investors. The Sacramento system might be integrated with the bay area systems now being designed, with the Amtrak Capitol Corridor being a logical connection between the two.

See the Bike Share Bulletin_April_2013.

bike corral overflow

bike corral and overload at Insight Coffee
bike corral and overload at Insight Coffee

The bike parking corral at Insight Coffee on 8th Street is a great service to customers, but on nice days like we have been having, it is far too little. On Sunday morning, there were almost three times the bicycles parked around Insight Coffee as the 10-space bike corral could handle. There were bikes locked to parking meters and sign posts on both sides of the streets, and some bicycles simply unlocked for lack of a place.

We need more bike parking! Most customers are arriving by bike, few by car, at least when the weather is nice. It is a little hard to judge the number of customers by car on Sunday in this neighborhood, because car parking is filled with churchgoers for the churches to the south, and customers cannot park close to the business, but while sitting and watching for over an hour I saw only a few customers who seemed to be arriving by car. In contrast, there was a continuous turnover in the bicyclists, representing more than fifty customers in just an hour. And a lot of people arrived on foot, walking in from the neighborhood.

I am not being critical of Insight Coffee. They deserve praise for welcoming the Park-A-Bike demonstration bike corral, and for keeping it. I am pointing out that we have too little bike parking and too much car parking in downtown/midtown. Customers are coming by bike!

The other bike corral is at Pangaea Two Brews on Franklin.

Floating bike lane on I Street

This is a follow-on to The I Street mess, and is another example of poor sharrow placement. Thank you, Elle, for reminding me to write about this.

On I Street between 7th and 6th streets, there is a floating bike lane on the north side. A floating bike lane, also called a part-time bike lane, is one that is designed to be a parking lane for part of the day and a motor vehicle travel lane for part of the day.

The first photo below is the lane when parking is prohibited, and it is a shared motor vehicle travel lane. The signing indicates that parking is prohibited from 4 to 6PM on weekdays. This is in order to provide more lanes for the flush of traffic heading to the freeway during the afternoon rush hour. There are sharrow markings at the beginning and near the end of the block, to reinforce the “bikes may use full lane” sign (MUTCD R4-11).

The next photo shows the same floating bike lane when parking is allowed, the rest of the time. As you can see, the sharrows are partly covered by parked cars. The remaining width of the lane, which forms a de-facto bike lane, is too narrow for a lane adjacent to parked cars and is unsafe. In this particular location in front of the county jail, it is doubly unsafe because frequent turnover in cars (one hour limit) and the type of people who park here, not the sort to be thinking of bicyclists before they open their car door. In fact, guidance on floating bike lanes recommends against their use in situations with high-turnover parking.

I Street floating bike lane during parking prohibition
I Street floating bike, parking prohibited

I Street floating bike lane, parking permitted (Elle Bustamante)
I Street floating bike lane, parking permitted (Elle Bustamante)

I never ride in this floating bike lane when there are parked cars, I always ride in the full travel lane to the left, but I often get honked at by drivers who think I should be in the “bike lane,” and don’t realize it is not a safe place to ride.

There is nothing inherently wrong with floating bike lanes. A number of cities use them in cases where they perceive a need to carry high volumes of motor vehicle traffic at certain times of day, but want to accommodate bicyclists at other times. They are always seen as a compromise that doesn’t make anyone completely happy. However, this is the only instance that I’m aware of in Sacramento, and it is not signed and marked in such a way as to communicate its purpose and use to either drivers or bicyclists. It needs to be crystal clear for everyone, or be removed. Maybe it is time for this floating bike lane to sink.

This section of I Street is the logical main access route for bicyclists to the train station. Rush hour for cars is also rush hour for bicyclists. What I see during this time of day (4-6PM) is a lot of bicyclists riding the wrong way, or on the light rail tracks, along H Street in order to access the train station. It is worrisome to me that that I Street was not designed with bicyclist safety in mind. Bicyclists feel that it is safer to ride against traffic on H Street than with traffic on I Street, despite the fact that wrong way riding is the leading cause of bicycle-motor vehicle crashes, or to risk spills getting caught in the light rail tracks, anything to avoid I Street. I have seen several bicyclists fall on the light rail tracks here.

I Street in this section could be made safe for bicyclists in two ways:

  1. Remove parking from the left side of I Street and shifting travel lanes to the south so that a full 6.5 foot bike lane could be installed. The sharrows would not then be needed. Or, 
  2. Make the right hand lane a full-time parking lane and move the sharrows into the next travel lane to the left.

Given that there are bike lanes both east and west of this block, option one is probably the best because it would create a continuous bike lane, but option two is workable.

The I Street mess

Thank you, Elle, for reminding me in your “transportation ‘planning’ downtown” that I wanted to write about I Street. Note: If you are looking at Google Maps, it does not show the current lane configuration on I Street since the repaving and re-striping project of last fall, nor the realignment of tracks and work on extending 5th and 6th streets over the tracks.

I Street from the 4th Street crosswalk
I Street from the 4th Street crosswalk; I have the walk signal but this is still scary

I Street in Sacramento approaching the train station is a mess. Starting with the confusing floating bike lane between 7th and 6th streets (subject of a future post), the street becomes worse and worse: five lanes wide, high speed, and completely unfriendly to bicyclists and pedestrians. For pedestrians, the crossing on the east side of the I/5th intersection is uncomfortable because westbound traffic is already moving at high speed and often runs the red light, and right turning cars from I to 5th often do not yield to pedestrians in the crosswalk. The west side is so unsafe due to traffic turning left off 5th Street, it is signed against pedestrian crossing, even though this is a logical walking route from downtown to the train station. A crosswalk has been added on the east side of the I/4th intersection, but it has the same challenges that drivers are moving too fast and often run the run light. When I used this new crosswalk, I was very concerned, and I have a much higher tolerance for danger than most people do.

The right-most two travel lanes lead to the high-speed northbound I-5 freeway onramp, so drivers passing 6th Street are already accelerating to freeway speeds, many times going 55 mph as they cross through the I/5th intersection. The next two lanes lead to a medium speed onramp to the I Street bridge over the Sacramento river, and to the southbound I-5 onramp. For pedestrians, the only way to go westbound towards Old Sacramento is to go through the parking lot for the train station and under the onramps along an ugly, dark, poorly marked pedestrian way.

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sharrow problems

My post on the new downtown bike lanes, shortly after the work was completed in fall 2012, had some mild criticism of the placement of sharrows. After many months of riding on these particular streets, and observing how bicyclists and motor vehicle drivers respond to their placement on the roadway, I am now prepared to criticize the sharrow placement more strongly.

The California MUTCD section 9C.07 specifies that shared lane markings (commonly called sharrows) must be at least 11 feet from the curb where parking is present. Either traffic engineers or paint crews, not sure which, are taking this to mean that the sharrows should be placed exactly 11 feet from the curb, as many of those in the recent Sacramento project were. The NACTO Urban Bikeway Design Guide has a better recommendation, “On streets with posted 25 mph speeds or slower, preferred placement is in the center of the travel lane to minimize wear and encourage bicyclists to occupy the full travel lane.” However, the NACTO guide has not been recognized or adopted by either the state or Sacramento, and in fact some vehicular cyclists are opposed to the NACTO guide because it promotes separate facilities over riding in traffic, but that is a conversation for another post.

One of the purposes of the sharrows is to guide bicyclists about the best place to ride in situations where bike lanes are not present and the lane is too narrow to share, 14 feet or less. When sharrows are placed to the side of the travel lane, they are too close to parked vehicles and their car doors. Doors on some two-door vehicles come out an amazing 54 inches from the side of the car. So if the side of a parked car is 7 feet from the curb, the door comes out 11.5 feet, more than the minimum specified in the MUTCD, and that does not even count handlebar width and shy distance. Eleven feet is not a safe placement. Many bicyclists know that this is not safe, and therefore ride in the middle of the travel lane, but since they are no longer riding on the sharrows, motor vehicle drivers think that they are riding in an illegal fashion and do the typical immature driver things: yelling, honking, following too close, and intimidation through close passing. Yet if the bicyclist is riding on the sharrows, then many motor vehicle drivers feel that there is room to squeeze by in the same lane, thereby coming much too close to the bicyclist and endangering them. The only safe place for the bicyclist to be is in the middle of the travel lane, and that is where the sharrows should be.

Examples and solutions after the break…

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