Indian Railway ATP Speed Guidelines

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Questions and Answers

What does the distance to the next approaching signal consist of?

Distance from the first diverging point to the next approaching signal plus 30m. (correct)

Distance from the last signal to the next signal plus 50m.

Distance from the start of the loop to the next signal plus 20m.

Distance from the foot of the last signal to the next diverging point plus 10m.

What is specified in the track profile table regarding speed restrictions?

Static speeds for all train categories with no distances.

Speed restriction distance for portions with different permissible speeds. (correct)

Only the maximum allowed speed for every section.

The exact locations of signals placed on the route.

Which static speed category applies to loaded goods trains?

Category U.

Category B. (correct)

Category C.

Category A.

What does the gradient specification include?

The gradient type, value, and length in meters. Signup and view all the answers

What does an engineering gradient require from the engineering department?

Index plan information for all types of gradients. Signup and view all the answers

If the track includes a rising gradient, how should it be denoted?

As 'R' for rising. Signup and view all the answers

What is the additional distance added when exiting from station premises to the last converging point?

10m. Signup and view all the answers

What is indicated by the 'Level' gradient in specifications?

No change in elevation. Signup and view all the answers

What is the new updated location for R-609?

126.747 Signup and view all the answers

On which date was the location of R-609 updated?

20.03.2024 Signup and view all the answers

Which version of the RFID tag layout is referenced in the content?

GGD 2.0.2 Signup and view all the answers

What is the significance of the location being updated?

To improve tracking accuracy Signup and view all the answers

What is the term used to refer to the layout mentioned in the document?

KAVACH RFID Signup and view all the answers

Which of the following is NOT included in the KAVACH control table?

Shunt signals Signup and view all the answers

What is the purpose of including the Engineering Gradient in the KAVACH table of control?

To help prepare relevant control tables Signup and view all the answers

Which statement is true regarding permissive signals and their inputs for signal indications?

If inputs are not available, aspects are derived from the Stop Signal. Signup and view all the answers

What is the relationship between the RFID tag-TIN layout and the KAVACH control tables?

It specifies shunting limits which are part of Stationary KAVACH data. Signup and view all the answers

What type of signals does the KAVACH control table include?

All signals monitored by a specific Stationary KAVACH unit Signup and view all the answers

Which document is directly referenced in the preparation of the KAVACH control table?

TSRMS data base Signup and view all the answers

In scenarios where the inputs for signal indications are available, what should be used to display the signal aspect?

ECR Signup and view all the answers

How should the movement authority be decided in relation to STOP signals?

Based on the aspect of the approaching Stop Signal Signup and view all the answers

Which of the following is essential for the preparation of the KAVACH control table?

Engineering Gradient Signup and view all the answers

What should be included in the KAVACH control table to ensure proper monitoring?

All relevant signals monitored by the KAVACH unit Signup and view all the answers

What is included in the specification for LC gates?

LC ID, LC distance, LC manning type Signup and view all the answers

Which type of track condition is mandated for implementation?

Dead stop and KAVACH Territory Exit Signup and view all the answers

What information must be recorded for an Entry Signal in the Temporary Speed Restriction Route Table?

Approaching signal for a route Signup and view all the answers

What does TSR Route ID refer to?

The start RFID Tag of the TSR route Signup and view all the answers

Which of the following is not a type of LC Class according to the specification?

B3 Signup and view all the answers

What is the purpose of the Last Pole distance from Exit Signal entry?

To measure distance in meters Signup and view all the answers

Which of the following track conditions is optional?

All other track conditions Signup and view all the answers

What specific distance information must be included regarding the Entry Signal?

Entry Signal distance from OHE line start RFID Tag Signup and view all the answers

What defines the KAVACH Control Table specifications?

Operational safety and signaling efficiency Signup and view all the answers

What type of LC gate is defined by its manning type?

Manned and unmanned Signup and view all the answers

What does the OHE Pole/Km Data column define?

The distance of the 1st OHE pole from the route start RFID Signup and view all the answers

What is the purpose of the TSL Entry Signal?

To indicate the start of the Temporary Single Line working Signup and view all the answers

What should the aspect of the TSL Exit Signal be set to?

Red/blank for Temporary Single Line working Signup and view all the answers

Which statement is true regarding the points in the route during TSL working?

Points must be locked according to operational rules Signup and view all the answers

What does the Requires Track Circuit Up field signify?

It denotes the track circuits that must be active for the TSL route Signup and view all the answers

For TSL operations, how should the signals be configured?

Entry signals must be red/blank Signup and view all the answers

What does TSL stand for in the context of railway operations?

Temporary Single Line Signup and view all the answers

Which of the following describes the RFID's role at the start of the route?

It marks the commencement point for distance measurement Signup and view all the answers

Which statement correctly reflects the requirements for Temporary Single Line working?

Systems must be operationally verified before TSL starts Signup and view all the answers

What is true about the distance between OHE poles?

It is measured from the first OHE pole to the next Signup and view all the answers

Study Notes

KAVACH Control Table Guidelines

The KAVACH control table is used in implementing the Indian Railway ATP.
The distance for speed restriction is calculated from the starting point of the first diverging point in the track to the next approaching signal.
This distance includes an additional 30 meters.
When exiting the station premises, the speed restriction starts at the foot of the approaching signal and continues to the end of the last converging point.
This distance includes an additional 10 meters.
When the turnout portion and loop line have different permissible speeds, these speeds are indicated on the track profile table.

Permanent Speed Restriction (PSR)

PSR specifies a static speed type, speed values (in kilometers per hour), and the length of the restriction (in meters).
Static speed values are categorized as U, A, B, and C:
- U: Static speed applicable to all train categories.
- A: Static speed for category A trains (Light Engines and Passenger trains).
- B: Static speed for category B trains (Loaded Goods trains).
- C: Static speed for category C trains (Empty Goods trains).

Gradient Specifications

Gradient specifications include the gradient type (rising, falling, or level), the gradient value (e.g., 1 in 400, 1 in 33, etc.), and its length in meters.

Engineering Gradient

The engineering gradient is obtained from the engineering department's index plan.
It is specified for every rise (R), level, or fall (F) with respective distances.

KAVACH Control Table Preparation

The KAVACH control table should be prepared with consideration of:
- Station's Standard Instruction Paper (SIP)
- Station's Timetable of Operations (TOC)
- Approved RFID tag - TIN layout
- TSRMS (Train Speed Restriction Management System) database
- Adjacent Stationary KAVACH control table
- Engineering Gradient (Index Plan)

KAVACH Control Table Document Reference

All documents used in preparing the KAVACH control table should be referenced on every sheet of the KAVACH control table.

Shunt Signals

Shunt signals are not included in KAVACH control tables.
However, the station's shunting limits are defined in the RFID tag-TIN layout.

KAVACH Control Table Scope

The KAVACH control table includes all signals monitored by a specific Stationary KAVACH unit.

Permissive Signals

In the case of permissive signals where input signal indications are available, the ECR (Electronic Cab Rear) will be used for displaying the signal aspect.
Movement authority is based on the signal aspect of the approaching Stop Signal.

Permissive Signals without Signal Indication Inputs

With permissive signals where input signal indications are not available, the signal aspect and movement authority are deduced based on the signal aspect of the approaching Stop Signal.

LC Gate Specifications

Specifications include:
- LC ID (Numeric ID and Alpha Suffix)
- LC Manning type (manned/unmanned)
- LC Class (Special, A, B1, B2, B, C, and D)
- LC Distance (in meters)
- Whether LC Auto whistling is enabled

Track Condition Specifications

Track condition types, including dead stop and KAVACH Territory Exit, are mandatory.
Other track condition types are optional.
The location of the track condition with its start distance and length in meters is specified as applicable.

Temporary Speed Restriction Route Table (TSR Route Table)

The TSR Route Table includes information for temporary speed restrictions:

TSR Route Table Information

Entry Signal: The approaching signal for a route. This may be a terminal yard stop board, shunt signal, or buffer end.
Exit Signal: The next approaching signal on the route.
OHE Line: The overhead electric line name for the route.
TSR Route Start RFID Tag: The signal foot tag of the signal from which TSR details will be sent by TSRMS.
TSR Route ID: The ID defined by the TSR Route start RFID Tag ID. Multiple routes for TSR route start RFID Tag are appended with a line number.
Entry Signal distance from OHE line start RFID Tag (in meters): The distance between the TSR Route start RFID Tag and the entry signal RFID Tag.
Last Pole distance from Exit Signal (in Meter): The distance from the last OHE pole from the exit signal.
OHE Pole/Km Data (in meter): Defines the distance of the first OHE pole from the TSR route start RFID Tag, followed by the distance between subsequent OHE poles.

Temporary Single Line Working on Double Line Table

The table includes information for temporary single-line working situations on double tracks:

Temporary Single Line Working on Double Line Table Information

TSL Entry Signal: The approaching signal or stop board for temporary single-line working on double line for a route.
TSL Exit Signal: The next approaching signal for temporary single-line working on double line for a route.
Aspect of Entry Signal for TSL: Always RED/blank for temporary single-line working on double line.
Requires Aspects of Exit Signal for TSL: Always RED/blank for temporary single-line working on double line.
Requires Points in Route: Points are locked as per operational rules (normal/reverse) before starting temporary single-line working on double line.
Requires Track Circuit Up in Route for TSL Exit signal: Indicates the track circuits required to be picked up for the TSL route.

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Description

This quiz covers the KAVACH control table guidelines and permanent speed restrictions (PSR) implemented in the Indian Railway ATP system. It examines the rules for calculating speed restrictions and categorizing static speeds for different train classes.