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length shall be programmable increments. At least 6 numbered <br /> offsets and S numbered splits shall be available. Additionally, in <br /> the Timing Pattern Routine, it shall be possibly to designate the <br /> intersections which are to be assigned to subsystem by particular <br /> Timing Pattern. It shall also be possible to place any <br /> intersection in flash while this Timing Pattern is in effect. <br /> <br />(6) Speed Calculation Routines. The computer and/or surveillance <br /> asse!'mi~lie~ shall be capable of computing speed by the distance/time <br /> method. One or two detectors may be utilized and spaced the <br /> effective distance to be progran~ned. <br /> <br /> The time between speed calculations shall be programmable by the <br /> operator in a range from 1 minute to ZO minutes in 1 minute <br /> increments. It shall be possible to obtain an automatic speed <br /> calculation printout at the time of each calculation. <br /> <br />(7) System Display Routine. Results of subsystem calculations.shall be <br /> listed at the'hard copy printer and remote terminals. The master <br /> computer shall enable the terminals to print the pattern number, <br /> cycle length, offset, and split assigned to each subsystem. The <br /> subsystem status shall be followed by a listing of the volume and <br /> occupancy percentage for outputs of each Calculation Routine. <br /> There shall be at least S options for displaying each subsystem. <br /> These are: <br /> <br /> a. Display Immediate -- The parameters shall immediately be <br /> displayed when requested by the operator. The information so <br /> displayed will reflect results of the last calculation. <br /> <br /> b. Display Automatic -- A listing shall be enabled whenever there <br /> is a change pattern number. <br /> <br /> c. Display Pattern -- Same as display automatic except that the <br /> individual detector data and percentage results of Calculation <br /> Routines shall not be displayed. <br /> <br /> d. Display None -- No display desired. <br /> <br /> e. Display Timed -- A listing shall be enabled whenever there is a <br /> calculation made or automatically at one minute intervals, <br /> whichever occurs first. <br /> <br />Additional automatic routines, not progranm~able by the operator, shall <br />be provided as follows: <br /> <br />(1) Standby and Failure Routines. These routines shall automatically <br /> provide '~lie "'following: <br /> <br /> a. Orderly shutdown of the master control center in the event of <br /> power fail ure. <br /> <br /> b. Diagnostic monitoring of the computer system operation and <br /> initiation of a master control shutdown if computer system <br /> mallunction is detected. <br /> <br /> -11 - <br /> <br /> <br />