The expansion of CaBi is already being planned (even though all of the original stations aren't online yet) and there is some news starting to come out about it.
One ANC in Georgetown has decided to get out in front of the issue by telling DDOT which four locations they would approve of. Those locations are the Jackson School (across from Montrose Park), the library, Hyde-Addison Elementary, and the sidewalk on M just west of the bridge. "Now that a list of preferred stations has been approved by the ANC it’s up to DDOT to listen or not." [OT: they also approved the Nation's Triathalon street closure after deciding that they were giving enough to charity]
In Arlington, Chris Eatough of Bike Arlington writes
Stations will be added in 3 phases during 2011, Spring, Summer and Fall. Arlington County has funds available for 16 new stations total in 2011. More stations can be added by businesses that desire a Capital Bikeshare station at their location and are willing to finance the cost. For pricing details of the stations and bikes, go to http://bit.ly/dTAy36 or email info@BikeArlington.com. The 16 stations will be located in the Rosslyn-Ballston corridor with the first being placed in Rosslyn to provide connection to existing Capital Bikeshare stations in Crystal City and Georgetown. Expansion will be an ongoing effort as funds become available from both public and private sources.
The reason for the phases is that they're funding it with vehicle decal revenue and CMAQ money, and so they plan to buy new stations as money becomes available. The reasons for Rosslyn, People Powered Arlington writes:
first, with CaBi stations in Georgetown, Foggy Bottom, and Crystal City; Rosslyn is the next most-logical placement. Second, an as-yet-unnamed company in Rosslyn is interested in joining the program and is willing to pay to get stations placed in their neighborhood first.
PPA also notes that Arlington has begun to rethink the system in interesting ways (based on data)
The thinking then was that the ideal ratio of bikes to station docks was about 2/3. Fast forward a few months and the people who keep track of these things now believe that ideal ratio is closer to 1/2. Thus, every new station will come with only 5-6 new bikes.
[OT: PPA also notes that the county has done an assement on trail wear and tear, and installed the first of 14 infrared and induction loop ground counters for trail counts. The counters can distinguish between cyclists and pedestrians.]