https://www.railway-technology.com/news/siemens-sprinter-support-nctd/
Siemens Mobility has received a contract from the North County Transit District (NCTD) for its Sprinter diesel multiple unit (DMU) vehicles.
support contractsiemenssecuressprinterdmu
https://www.kpbs.org/news/quality-of-life/2016/08/15/nctd-advises-riders-not-board-shortened-train-used
NCTD is testing Positive Train Control, which would help prevent accidents from human error
nctdadvisesridersboardshortened