American Audio VELOCITY - REV 4-05 Instructions d'exploitation télécharger pdf (Page 32)

METRO RAIL DESIGN CRITERIA SECTION 9 / SYSTEMS

DE304.09 9-27 Revision 4: 05/09/12

Metro Baseline Re-Baseline: 04/29/10

TABLE 9.1

BRAKING RATES FOR LIGHT RAIL VEHICLE

Average Deceleration Rate (MPHPS)

Braking

Entry

Speed

(MPH)

Service

Braking

System

Dynamic

Brakes

Cutout

Emergency

Braking

System

55 or more

20 OR less

2.7

2.6

2.5

2.3

2.2

1.9

2.0

2.1

2.2

4.5

5.2

4.5

3.5

Hi-Rail Maintenance Vehicle Design Loading

• Refer to Section 4 for loading parameters.

I. Vehicle Doors

There shall be an appropriate number of door openings per car side to permit pas-

senger movement between the car and the platform. Paragraph 9.3.2.A identifies

the door configuration that has been selected for the current operation.

1. Door controls shall be trainlined to permit the operator to open and close all

doors on either side from the operating cab. Door controls for each side

shall be independent. The operator's door control switches shall be toward

the same side of the cab as the doors being opened.

2. Door control circuitry shall be designed to preclude un-commanded opening

of doors.

3. Operation of one car door on each car side shall be possible from both the

inside and the outside of the car by means of a keyed crew switch. Entry to

the operator’s space shall be by key whether via internal or external means.

4. The door apparatus shall include a passenger activated door emergency

release capability. Operation of this device shall initiate a full service stop.

5. Each door leaf shall be equipped with a positive mechanical locking feature

which shall prevent the door leaf from being manually pushed open when

the train is moving.

6. A sealed traction interlock bypass switch shall be provided in the operator

cab to permit movement of the train in the event of side door interlock circuit

failure.

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