American Audio VELOCITY - REV 4-05 Betriebsanleitung PDF herunterladen (Seite 36)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-31 Revision 4: 05/09/12

Metro Baseline Re-Baseline: 04/29/10

vehicles and trains may operate at speeds not to exceed 20 mph unless

otherwise restricted in accordance with CPUC GO 143 B, Table 1.

Speed Maximum of 35 mph - Rail vehicle operations located upon a street or

highway also handling motor vehicle traffic may operate at lesser of a speed not

to exceed 35 mph or the speed permitted by the local Vehicle Code for motor

vehicle traffic, in accordance with CPUC GO 143 B, Table 1.

Speed Maximum of 45 mph - Rail vehicle operations located on private right-of-

way which may include at-grade crossings over which motor vehicle traffic is

controlled by automatic crossing gate signals and pedestrian traffic is controlled

by automatic crossing signals; rail operations not governed or controlled by a

continuous train control, or automatic block signal system may operate at a

speed not to exceed 45 mph in accordance with CPUC GO 143 B, Table 1.

Speed Maximum of 55 mph - Rail vehicle operations located on private right-of-

way, which may include at-grade crossing over which motor vehicle traffic is

controlled by automatic crossing gate signals and pedestrian traffic that is

controlled by automatic warning signals, may operate at speeds not to exceed

60 mph, provided that all vehicles and trains are governed or controlled by a

signal system in accordance with CPUC GO 143 B, Table 1.

Crossing of Railroad Tracks At-Grade - Rail vehicle operations over a crossing

of railroad at-grade shall be governed and controlled by an automatic

interlocking installation constructed, maintained, and operated pursuant to

Sections 20 through 23 of CPUC General Order No. 33B, except at a railroad

grade crossing which has been exempted from this requirement by the CPUC.

Design of Signal Control Apparatus and Circuits Signal Control Apparatus and

circuits shall be designed to meet the following:

1. All components shall be combined in such a manner that a restrictive (rather

then Permissive) condition results from a component failure.

2. All components shall be reliable and have predictable failure modes in

accordance with System Assurance Section of this document. (See Design

Criteria Section 12.)

3. All control circuits shall be designed on the closed circuit principle where

circuits interrupted or de-energized will cause the controlled function to

assume its most restrictive condition.

4. All circuits not totally within a single apparatus enclosure shall have double-

wire, double-break control.

5. Isolation shall be provided between all circuits and sources other than those

intended for the circuit to prevent a flow of current of more than 50% of the

release value of any relay or other safety device used in the circuit.

6. No fuses or circuit breakers that would impact circuit functions shall be

allowed internal to those circuit..

1 2 ... 31 32 33 34 35 36 37 38 39 40 41 ... 190 191

Keine Kommentare

American Audio VELOCITY - REV 4-05 Betriebsanleitung Seite 36