Siemens EH.75M.11. Especificaciones descargar pdf (Pagina 58)

T400 Controller Facilities Manual

667/EB/20200/000 Page 8-3 Issue 9

8.3 PHASES GAINING RIGHT-OF-WAY

The intergreen times from a conflicting phase determines at which point a phase gains

ROW. If phases gaining ROW have different intergreen times from a conflicting phase

then they will gain ROW at different points. The time differences will be the same

every time the phase to phase transition occurs regardless of the stage to stage

transition. For example, in Figure 8.2(a) (referring to the intersection in section 21) if

the I/G E-A/G is 5 seconds and the I/G E-B is 6 seconds then, whether on a move 3-1

or 5-1, Phase B will gain ROW 1 second after Phases A and G. If it is required to have

an I/G E-B of 6 seconds on a move 5-1 then this would be achieved by having an I/G

E-B of 5 seconds and delay Phase B by 1 second on a move 5-1. Figure 8.2(b)

illustrates the move 3-1 and Figure 8.2(c) the move 5-1.

Figure 21.4 indicates where to request the phase delay facilities.

8.4 DELAY TIMER

Whether a phase is losing or gaining ROW, the delay timer starts when the leaving

stage terminates.

If a phase losing ROW is delayed, it will be prevented from terminating (i.e. held at

green) for the delay period.

If a phase gaining ROW is delayed, it will be prevented from gaining ROW (i.e. held at

red for traffic and pedestrian phases and blackout for green arrow phases). In this case

the delay time must include the longest intergreen time to the phase on this transition

plus the actual delay required. In the case of a traffic phase the red/amber time (i.e. 2

seconds) is not included in the total sum.

In the example in Figure 8.2(c) to delay traffic Phase B from gaining ROW by 1

second the delay timer time will be:

5 (I/G E-B)

+ 1 (delay required)

- 2 (red/amber)

= 4 (total delay timer time)

Note: If phase B had been a Green Arrow or Pedestrian phase it would be:

5 (I/G E-B)

+ 1 (delay required)

- 0 (no RED/AMBER)

= 6 (total delay timer time)

1 2 ... 53 54 55 56 57 58 59 60 61 62 63 ... 307 308

Sin comentarios

Siemens EH.75M.11. Especificaciones Pagina 58