. >> the pcc p was launched in april of last month. >> the way we launched it many components are take place in order for the hiring manager to have eligible folks interested in the position we launched it now for the first phase with dph was to insure people were provided with information submitting 0 online on the documents we needed at the end of the process causing delays and provided a milestone maker so the process includes the following steps and the timelines to include the steps that led to the companionships of eligibility and the civil service rules to see if they're interested in a position that process is happening as we speak the first real access to eligible candidates in positions will happen later this week to the hiring manages to start. >> thank you when i visited the hospitals a lot of the nurses talked about how long it takes in the past that many nurses decide to not work for the city but elsewhere i'm wondering if there was a look at others dph systems in the private or the non public sector that helped to put together this plan and how do you see comparing to wh

. >> that some of our volunteers participated with the f pcc in the investigation and but the when the f p pc finally reached a conclusion and advised us they were tipped a she means to i think almost 4 years or more than 4 years had run at this point we in the interim did nothing to as a commission to say hey you know look how long this is dragging out again that i think that is part of problem we're facing today is that we didn't handle it right. >> let me ask you this if from the beginning when we turned it over to the t p pc at their request and stood down do we in general have a legal right to continue or create our own concurrent investigation if the f p pc takes on a matter and do our own investigation or does it have to be one or the other. >> city attorney. >> as a matter of comfiest. >> co m mit y. >> yes. >> it is the practice to allow them to conduct their investigation with the resources to preceded simultaneously but no legal requirement that ourethics commission couldn't simultaneously pursue an investigation. >> commissioner. >> i think the mistake that was made by the

reporter: we're learning this section of track lacked a safety feature called positive train control or pcc. which can monitor and control trains in a safe stop. >> based on what we know right now, we feel that had such a system been installed in the section of track, this accident would not have occurred. >> reporter: amtrak service along the corridor remains suspended. no indication when it will restart. lester. >> thanks. you mentioned toolg technology and how this could have been prevented. what could have prevented it we asked nbc's peter alexander to take a closer look. >> reporter: why was the train going so fast? it's still not known. >> it could be a mechanical issue. it could be a lack of awareness or training it could be an operator issue. >> reporter: last night's crash is hauntingly similar to this dramatic high speed disaster in spain two years ago. the train flew off the rail going over 100 miles an hour. experts insist the p thrks c technology could make accidents like this a thing of a past. it's a sophisticated ray of censors. even using satellites to track the movements.

what pcc does provides an extra layer of protection in order to make sure that the engineer is doing what he or she should do to safely operate the train. as you can see on the monitor here the little white dot represents the train itself. this represents the warning distance when we come up on an area where it actually needs to be taken. the red line represents breaking distance that's properly needed to break the train safely. you see this means we're going up hill. this area is a restricted zone restricted speed which will be coming up on shortly. you'll be able to see in just a moment if we don't take the proper action as the engineer ppc system will take over and safely shut that train down. >> after that chatsworth crash in 2008 people killed you became very aggressive about implementing this cutting edge technology. >> we did. we've been working hard to implement last four years, $260 million investment in the system. it involves equipment on our trains on the right-of-way communications tower, very elaborate system but one we think is incredibly important and will ultimately