If you ride the bus from/to West Seattle, you might have been affected by a cancellation lately. Today in particular, Metro texted/tweeted four cancellations on West Seattle-serving routes, as noted in our daily transit/traffic coverage. WHen we asked the county about cancellations recently, the explanation involved a personnel shortage. After what happened today, we asked King County Department of Transportation spokesperson Jeff Switzer if it was still a staffing issue and if so, what efforts are under way to remedy it. Here’s his reply, including an explanation of the notifications, which he says are new:

The alerts for cancellations aren’t all in West Seattle, and not all canceled trips are receiving alerts at this time as staff fine tune how to best to accurately communicate canceled trips in a timely fashion. We’ll look into what might have led to the coincidence of cancellations the past few days; 55/56/57 operate out of Central Base and they might have had fewer available operators today for some reason. …

As Metro began implementing the system’s largest service increases this past June, and more in September and March to help meet demand, we’ve been hiring and training at an unprecedented pace: We’ve hired and trained hundreds of part-time drivers and promoted and trained part-time drivers to become full-time drivers – all part of the transition to putting more service on the road.

Today we have more than 2,500 operators – about 1,600 full-time and 900 part-time. Right after Prop 1 passed, we got started on hiring to implement the new planned service. We have hired 212 part-time operators from January through August, and promoted 173 operators to full-time, and are increasing staffing in our rail section in advance of U Link and First Hill Streetcar. We anticipate hiring an additional 225 part-time operators and promoting an additional 96 operators to full time through March 2016. We have attended career and hiring fairs and will be back on college campuses this fall recruiting people interested in becoming part-time drivers. Growing our ranks is essential to growing service, but it means some growing pains during these times of transition.

Coordinators at the bases and control center work to fill individual bus trips whenever an operator becomes sick, or is in training classes or otherwise unavailable. They use the workforce available to backfill any missed trips as best they can. They rely on some standby operators but also seek available drivers willing to take on extra work.

Riders don’t even notice that this goes on every day as coordinators work to make the service perform smoothly. In the event a replacement operator isn’t available, some trips unfortunately go unfilled, which can mean more riders boarding the following bus. A new effort in its infancy now tries to notify riders via email and twitter when a trip isn’t expected to be filled. Even then, we have recently canceled some trips via transit alert, only to soon find an operator and “uncancel” it. Alerts are not yet sent for every canceled trip, but staff are working to improve this new effort at better customer communications. Better still, we’re hiring to avoid canceled trips altogether.

In some cases, a bus trip will operate very late with a replacement driver; however, a rider may already have made other arrangements or boarded on the following bus. The perception is that the trip never showed up. We send these buses out because even operating late helps ease any lingering crowding issues, provided it can get into the mix in a timely fashion. This is essential for first and last trips, where riders are especially dependent on our operations.

West Seattle isn’t alone and trip cancellations are occurring in places across the system, and vary from base to base on different days. Here’s a recent tally of West Seattle trips which did not operate for lack of a driver, not including any mechanical problems/ substituted coaches. This list shows 9 bus trips unfortunately canceled in the past three weekdays, with no canceled trips Aug. 22-28.

· Alerts show we canceled one Route 56 trip Tuesday morning. In the afternoon, we canceled a trip on the 21X, one on Route 56, one on Route 57.

· Alerts show we canceled and then filled a Route 55 Monday morning. We canceled one southbound Route 55 trip and one northbound Route 56 trip.

· Last week (Aug. 22-29), Route 55 had one canceled morning trip and one canceled afternoon trip, both Friday; there also was one morning Route 56 cancelation Friday.

Some weeks this summer have been a bigger challenge than others. We operate more than 11,000 trips each weekday, and over 55,000 each work week. Using backup drivers and asking drivers to work extra has kept more than 99 percent of trips on the street. We make every effort to avoid canceling back to back trips, or first and last trips, and are mindful that some areas of the county have infrequent service. We expect that as we continue to hire drivers and encourage available drivers to pick up extra trips if they can, service will smooth out and we will see fewer cancellations in coming weeks. Until then, we work day-in, day-out to put service on the road for riders.

We apologize for the inconvenience canceled trips cause riders and want to assure our customers we are working hard to address this quick growth in transit service by hiring good, professional customer-focused drivers. That effort continues and we graduate more drivers into the workforce every few weeks at the conclusion of each class.

Customers can sign up for transit alerts to receive notifications when possible of transit disruptions or canceled trips.