Given that in the past weekend of 27 to 29 May 2022 fatalities were noted due to vehicular collisions on our national roads, two of which occurred on the N3, what (a) total number of fatal car accidents has his department recorded from 1 January 2022 up to the latest specified date for which information is available, (b) were the recorded causes in each case and (c) measures have been implemented to prevent the recurrence of such accidents?