Over Dimensional Consignment (ODC) Guidelines
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Questions and Answers

What is the maximum height at the center for a Broad Gauge (BG) over dimensional consignment?

  • 4115 mm (correct)
  • 3430 mm
  • 3200 mm
  • 3505 mm

    • How is an Over Dimensional Consignment (ODC) defined?

  • A consignment that does not meet standard packing requirements.
  • A consignment exceeding the maximum weight limit.
  • A consignment exceeding the maximum standard moving dimension. (correct)
  • A consignment that falls under normal shipping standards.

    • What gross clearance categorizes a Class 'B' ODC?

  • Less than 10.16 cm
  • Between 15.24 cm and less than 22.86 cm (correct)
  • More than 22.86 cm
  • Exactly 15.24 cm

    • What is indicated by the maximum width measurement for a bogie wagon for an ODC?

    <p>3050 mm</p> Signup and view all the answers

    Which of the following is true about the regulations for booking ODC?

    <p>Prior sanction is required for all ODC exceeding standard dimensions.</p> Signup and view all the answers

    What is the maximum height at the sides for a Narrow Gauge (NG) over dimensional consignment?

    <p>2895 mm</p> Signup and view all the answers

    Which class of ODC has a gross clearance of less than 15.24 cm but not less than 10.16 cm?

    <p>Class C</p> Signup and view all the answers

    When using a dummy truck, what is marked on each vehicle?

    <p>Maximum weight that may be loaded</p> Signup and view all the answers

    What is the required action for a representative of the Traction Department when handling ODC loads wider than specified dimensions?

    <p>They must only accompany ODC loads wider than 1981 mm for BG and 1910 mm for MG.</p> Signup and view all the answers

    Which procedure is necessary at the originating station before moving an ODC wagon?

    <p>Final approval must be obtained from the competent authority.</p> Signup and view all the answers

    What must be communicated by the SS/SM before starting the train with an ODC?

    <p>They must advise the Section Controller on duty and describe the train number suffixed with 'X'.</p> Signup and view all the answers

    What is the requirement for the placement of a long load spanning three trucks?

    <p>The load must be clear of the floor of the end trucks by at least 152 mm.</p> Signup and view all the answers

    Which of the following statements regarding the shunting of trains with ODC is accurate?

    <p>Loose and rough shunting of ODC wagons is prohibited.</p> Signup and view all the answers

    What is the permissible sectional speed for Class A under the authority of the DRM?

    <p>BG-40 KMPH</p> Signup and view all the answers

    Which authority is responsible for sanctioning speeds in Inter Railway operations?

    <p>COM of the Zone and COM of concerned Railway</p> Signup and view all the answers

    What is the calculated net clearance related to the height of the load and super elevation?

    <p>Height squared times radius of curve</p> Signup and view all the answers

    What is the allowance for bounce in vertical movement when calculating net clearance?

    <p>7.62 cm</p> Signup and view all the answers

    Which clearance should be allowed for horizontal curvature due to the lean factor?

    <p>Lean due to super-elevation and overhang</p> Signup and view all the answers

    What is the maximum permissible speed for Class B aboard a BG line?

    <p>25 KMPH</p> Signup and view all the answers

    Which of the following is NOT a component of the formula for horizontal clearance?

    <p>Train speed (V)</p> Signup and view all the answers

    What must be awaited before a consignment is dispatched?

    <p>Final sanction</p> Signup and view all the answers

    What is the base measurement allowance for horizontal lurch in the net clearance formula?

    <p>75 mm</p> Signup and view all the answers

    Which details are required to be submitted to the Control regarding the wagon?

    <p>Wagon No., Owning Rly., Type of Wagon, Station from/to, and route</p> Signup and view all the answers

    Class C has a maximum sanctioned speed on MG lines. What is that speed?

    <p>25 KMPH</p> Signup and view all the answers

    What speed restriction is applied when gross clearance is between 390 mm and 340 mm?

    <p>15 kmph</p> Signup and view all the answers

    What radius factor influences the central overhang due to curvature?

    <p>B^2/8R</p> Signup and view all the answers

    What is the clearance requirement for a consignment to be permitted over electrified sections?

    <p>At least 390 mm</p> Signup and view all the answers

    What should be done when the overhead electrical equipment is 'LIVE'?

    <p>Maintain distance and avoid any contact</p> Signup and view all the answers

    What precaution is necessary when moving oversized consignments?

    <p>Overhead electrical equipment is always considered 'LIVE'</p> Signup and view all the answers

    What should be restricted to 15 kmph in the case of gross clearance less than 340 mm?

    <p>The speed of the train</p> Signup and view all the answers

    What must the Guard and Loco pilot receive regarding a train carrying an ODC?

    <p>A Caution Order</p> Signup and view all the answers

    Which condition necessitates turning off the overhead power during transport of oversized consignments?

    <p>When the gross clearance is less than 340 mm</p> Signup and view all the answers

    What formula is used to calculate the overhang at the end of a vehicle?

    <p>$\frac{L^2 - B^2}{8R}$</p> Signup and view all the answers

    What should be added to the height of a consignment to determine vertical clearance?

    <p>Vertical tilt</p> Signup and view all the answers

    Who verifies whether the ODC consignment exceeds the maximum moving dimension?

    <p>Station Master (SS) or Station Master (SM)</p> Signup and view all the answers

    What should be included in the application for sanctioning movement of ODC?

    <p>Length, width, height, and weight of the load</p> Signup and view all the answers

    What must the SS/SM communicate when providing sanction for ODC movement?

    <p>Specific route and restrictions for conveyance</p> Signup and view all the answers

    What is required of the SE(C&W) when examining the loaded wagon?

    <p>Check that the load is well secured and within restrictions</p> Signup and view all the answers

    What certification must be issued to declare a loaded wagon safe to run?

    <p>Fit to run certificate</p> Signup and view all the answers

    What should be done after sanction is received regarding the loading of the consignment?

    <p>Carefully load, lash, and pack the consignment</p> Signup and view all the answers

    What must the SS/SM do after receiving the 'fit to run' certificate?

    <p>Inform the Sr.DOM/DOM and other relevant offices</p> Signup and view all the answers

    What does the term ODC stand for in logistics?

    <p>Over-Dimensioned Cargo</p> Signup and view all the answers

    What is the maximum width for ODC loads in Broad Gauge (BG) before requiring additional clearance measures?

    <p>1981 mm</p> Signup and view all the answers

    What documentation must the Train Clerk/SM complete before an ODC wagon is moved at the originating station?

    <p>A vehicle guidance entry in red ink</p> Signup and view all the answers

    Which individual is primarily tasked with communicating ODC movement to adjoining Control Offices?

    <p>Dy.Chief Controller</p> Signup and view all the answers

    What is required of the SM and Guard when an ODC wagon is detached from a train at any station?

    <p>They ensure safe placement and securing of the wagon/load.</p> Signup and view all the answers

    What precaution is mandated for the placement of a long load when using three trucks?

    <p>The load must be placed on packing in the centre truck, clear of the end trucks.</p> Signup and view all the answers

    What is the maximum height at the sides for a Broad Gauge (BG) over dimensional consignment?

    <p>3505 mm</p> Signup and view all the answers

    Which class of ODC is defined by a gross clearance between 15.24 cm and 22.86 cm?

    <p>Class B</p> Signup and view all the answers

    Under what condition must prior sanction be obtained for ODC booking?

    <p>For any consignment exceeding the quoted dimensions</p> Signup and view all the answers

    For which type of wagon is the maximum width of 3050 mm applicable?

    <p>Bogie Wagon</p> Signup and view all the answers

    Which clearance requirement must be met when transporting consignments over electrified sections?

    <p>A clearance of at least 30 cm</p> Signup and view all the answers

    When using a dummy truck, what is the key limitation placed on loading a wagon or truck?

    <p>Weight must not exceed the maximum marked</p> Signup and view all the answers

    What is the minimum gross clearance required for a Class 'C' ODC?

    <p>4 inches</p> Signup and view all the answers

    What must be marked on each vehicle when utilizing a dummy truck for loading?

    <p>Maximum weight that may be loaded</p> Signup and view all the answers

    What is the maximum approved speed for a Class B consignment traveling on a broad gauge line?

    <p>25 KMPH</p> Signup and view all the answers

    Which authority is responsible for sanctioning the sectional speed for Class C consignments?

    <p>CRS</p> Signup and view all the answers

    What is the vertical bounce allowance included in the calculation of net clearance?

    <p>7.62 cm</p> Signup and view all the answers

    What must be considered when calculating horizontal clearance due to curvature?

    <p>Lean and overhang factors</p> Signup and view all the answers

    For a Class A ODC movement, which statement is true about the maximum sanctioned speed?

    <p>It can vary based on the railway segment and time of day.</p> Signup and view all the answers

    Which formula would be used to determine horizontal clearance due to curves in the track?

    <p>$B^2 / 8R$</p> Signup and view all the answers

    What is the sanctioned speed for Class C consignments during the day under CRS authority?

    <p>25 KMPH for MG</p> Signup and view all the answers

    What should be allowed for lurch in the net clearance formula for loaded trains?

    <p>75 mm</p> Signup and view all the answers

    What is the maximum permissible speed for a Narrow Gauge (NG) consignment during both day and night?

    <p>15 KMPH</p> Signup and view all the answers

    What must be included in the application for the sanctioning movement of Over Dimensional Consignment (ODC)?

    <p>A sketch of the consignment in duplicate</p> Signup and view all the answers

    Which of the following is a responsibility of the SS/SM of the station from which the ODC originates?

    <p>To communicate the specific route and any restrictions</p> Signup and view all the answers

    Which measurement should be taken into account when calculating vertical clearance for an ODC consignment?

    <p>The vertical tilt along with the height of the consignment</p> Signup and view all the answers

    What must the SE(C&W) verify about the load of an ODC before it can be sanctioned as safe to run?

    <p>The load is well secured and adheres to overall weight restrictions</p> Signup and view all the answers

    What should be done immediately after the fit to run certificate is issued?

    <p>Register the measurements and inform the SS/SM concerned</p> Signup and view all the answers

    What is the primary purpose of lashing and packing the ODC carefully before shipping?

    <p>To prevent shifting during transport and ensure safety</p> Signup and view all the answers

    In what context should an application for the movement of ODC be submitted to the Sr.DOM?

    <p>For any consignment that exceeds regular dimensions</p> Signup and view all the answers

    What type of restrictions must be adhered to while transporting an ODC?

    <p>All restrictions related to speed, night running, and platforms</p> Signup and view all the answers

    What does the formula $\frac{L^2 - B^2}{8R}$ calculate?

    <p>The overhang at the end of a vehicle</p> Signup and view all the answers

    What must the Sr.DOM do upon receiving an application for the movement of ODC?

    <p>Obtain necessary sanctions from the competent authority</p> Signup and view all the answers

    What is the required action regarding the electrical lines when moving oversized loads?

    <p>Treat the overhead lines as ‘LIVE’ unless a power block is obtained.</p> Signup and view all the answers

    Which speed restriction applies when the gross clearance for an oversized consignment is between 340 mm and 390 mm?

    <p>Speed must be restricted to 15 kmph.</p> Signup and view all the answers

    What is the minimum gross clearance required for an over-dimensional consignment to be permitted over electrified sections?

    <p>100 mm.</p> Signup and view all the answers

    In the presence of overhead electrical equipment, which action is prohibited?

    <p>Riding on any part of the vehicle when the lines are ‘LIVE’.</p> Signup and view all the answers

    Which document must be acknowledged by the concerned staff before despatching the wagon?

    <p>The necessary permission from control or Divisional office.</p> Signup and view all the answers

    What should be done regarding speed when gross clearance is less than 340 mm?

    <p>Speed must be limited to 10 kmph and the power switched off.</p> Signup and view all the answers

    Which of the following conditions necessitates a caution order for the guard and loco pilot?

    <p>When running on electrified sections with ODC.</p> Signup and view all the answers

    What is the maximum gross clearance allowed for a consignment to move through electrified traction areas without special restrictions?

    <p>390 mm.</p> Signup and view all the answers

    Which details must be furnished by the SS/SM/YS/YM to the Control regarding the wagon?

    <p>Full particulars including Wagon No., Owning Rly., and route details.</p> Signup and view all the answers

    What should personnel accompanying the ODC remember regarding the overhead electrical equipment?

    <p>It is always ‘LIVE’ unless a power block has been obtained.</p> Signup and view all the answers

    Study Notes

    Over Dimensional Consignment (ODC) Definition

    • A consignment exceeding the maximum standard moving dimension at any stage of its journey, including via break of gauge.
    • Any consignment exceeding the quoted dimensions requires prior sanction from Zonal headquarters before booking.

    Maximum Moving Dimensions

    • Measured from rail level at any point.
    • Dimensions vary across gauges:
      • Broad Gauge (BG):
        • Height at Centre: 4115 MM
        • Height at Sides: 3505 MM
        • Maximum Width: 3050 MM (Bogie Wagon), 3200 MM (4 Wheeled Wagon)
      • Meter Gauge (MG):
        • Height at Centre: 3430 MM
        • Height at Sides: 3200 MM
        • Maximum Width: 2590 MM
      • Narrow Gauge (NG):
        • Height at Centre: 3200 MM
        • Height at Sides: 2895 MM
        • Maximum Width: 2286 MM

    Dimensions Notes

    • Includes packing and lashing.
    • When a dummy truck is used, the maximum permissible load is marked on the vehicle and must not be exceeded.

    ODC Consignment Classification

    • Divided into 3 classes based on clearance from fixed structures.
      • Class A: Clearance ≥ 22.86 cm (9 inches).
      • Class B: Clearance ≥ 15.24 cm (6 inches) but < 22.86 cm (9 inches).
      • Class C: Clearance ≥ 10.16 cm (4 inches) but < 15.24 cm (6 inches).

    Maximum Movement & Sanctioning Authority

    • Sanctioning Authority:

      • Class A:
        • Within Division: DRM (Divisional Railway Manager)
        • Inter Division (Same Zone): COM (Chief Operating Manager)
        • Inter Railway: COM of the Zone and COM of the concerned Railway.
      • Class B:
        • Within Division: DRM
        • Inter Division/Foreign Railway: COM
      • Class C: CRS (Chief Rolling Stock)

    • Permissible Sanctioned Speed:

      • Class A: Sectional Speed
      • Class B:
        • BG: 40 KMPH
        • MG: 25 KMPH
        • NG: 15 KMPH
      • Class C:
        • BG: 25 KMPH
        • MG: 25 KMPH
        • NG: 15 KMPH

    • Movement Requirements:

      • Day or Night: Class A & B: Day & Night
      • Escorting Requirements:
        • Class A: --
        • Class B: TXR (Train Examiner)
        • Class C:
          • Day: SE (C&W) - Senior Engineer (Construction & Workshop), SE(P.Way) - Senior Engineer (Permanent Way), and TI (Traffic Inspector)
          • Night: --

    Net Clearance Calculation

    • A minimum allowance of 7.62 cm (3 inches) bounce (vertical) and 75 mm (3 inches) lurch (horizontal) is added for safety.

    Horizontal Clearance

    • Allowance for lean and overhang due to super elevation & curvature:
      • Lean: HC/G (H = height in feet, C = Super elevation, G = gauge)
      • Central overhang: B2/8R (B = distance between bogie center, R = Radius of curve)
      • Overhang for vehicle end: (L2 - B2)/ 8R (L = length of the vehicle)
    • **

    Vertical Clearance

    • If the consignment's top width exceeds the track gauge, a vertical tilt should be added to the consignment's height to calculate the vertical clearance from fixed structures.
    • **

    Procedure for Sanctioning Movement

    • SS/SM (Station Superintendent/Station Master) verifies the consignment's dimensions from origin to destination.
    • SS/SM applies to the Sr. DOM (Senior District Operations Manager) for sanction.
    • Application must include the length, width, height, weight, and a sketch of the consignment.
    • Sanction should specify the route and any movement restrictions – speed, night running, platform, etc.
    • No relaxation of restrictions is permitted.

    Loading

    • The consignment must be carefully loaded, lashed, and packed to prevent shifting.
    • SE(C&W) examines the loaded wagon:
      • Ensuring load is well secured.
      • Ensuring load is within the c.c. (carrying capacity) of the wagon.
      • Ensuring axle load restrictions are not exceeded.
      • Checking the wagon's under gear.
    • SE(C&W) issues a “fit to run” certificate for the loaded wagon, specifying the permitted route.
    • SS/SM informs the Sr.DOM/DOM and the COM's office.
    • Operating Branch advises the COMs of other concerned railways.
    • Provisional sanction is not final. Final sanction must be obtained before dispatch.

    Despatch of ODCs

    • Originating Station:
      • ODC wagon is moved only after final approval from the competent authority.
      • Train Clerk/SM enters the wagon number in the vehicle guidance in red ink for the Guard.
      • SS/SM informs the Section Controller about the train movement.
    • Dy. Chief Controller:
      • Informs adjoining Control Offices about the ODC movement.
      • Ensures the consignment is moved strictly by the authorized route.

    ODC Movement Restrictions

    • Shunting of trains with ODCs should be minimized.
    • Rough shunting with or against ODC wagons is prohibited.
    • When an ODC wagon is detached, the SM and Guard are responsible for safe placement and securing of the wagon/load.
    • Facility for accompanying staff for extra wagons/brake vans should be provided if necessary.

    Loading Long Consignments

    • Loads exceeding two trucks must be loaded onto three trucks, with the weight supported by the center truck.
    • The load must be placed above the center truck floor.

    Precautions for Electrified Sections

    • General Precautions:

      • Overhead electric equipment is always live unless a power block is obtained from the Traction Power Controller.
      • Never climb on the roof of wagons beneath overhead equipment unless it is made dead and earthed.

    • Clearance Requirements:

      • No speed restriction required with ≥ 390 mm clearance.
      • Speed restricted to 15 kmph with ≥ 340 mm clearance and ≤ 390 mm.
      • Speed restricted to 15 kmph, overhead power switched off with < 340 mm clearance.
      • No consignment with < 100 mm clearance allowed on electrified sections.

    • Staff Requirements:

      • Traction Department representative accompanies all ODCs with clearance specified in (b) and (c) above.
      • Traction Department representative accompanies ODCs with width > 1981 MM for BG and 1910 MM for MG, from the track center line.

    • Coordination:

      • Section Controllers and Traction Power Controllers must coordinate ODC movements on electrified sections.
      • A list of structures with restricted clearances and clearances under overbridges should be maintained by the Section Controllers and Traction Power Controllers.

    Over Dimensional Consignment (ODC) Definition

    • Consignments exceeding maximum standard moving dimensions on the entire route from booking to destination are considered ODC.
    • Prior sanction is required from Zonal headquarters for any consignment exceeding the maximum dimensions.

    Maximum Moving Dimensions

    • Dimensions are measured from rail level at any point.
    • Dimensions include lashing and packing.
    • When a dummy truck is used, the maximum weight allowed is marked on each vehicle and should not be exceeded.

    ODC Classification

    • Class A: At least 22.86 cm clearance between consignment and minimum fixed structure.
    • Class B: At least 15.24 cm but less than 22.86 cm clearance.
    • Class C: Less than 15.24 cm but at least 10.16 cm clearance.

    ODC Movement Sanctioning

    • Within Division: DRM (Divisional Railway Manager)
    • Inter Division of same Zone: COM (Chief Operating Manager)
    • Inter Railway: COM of Zone and COM of concerned Railway.
    • Local: Speed limits vary depending on gauge (BG: 40 km/h, MG: 25 km/h, NG: 15 km/h)

    ODC Movement Restrictions

    • Class A: Sectional speed, escorted day and night.
    • Class B: BG: 25 km/h, MG: 25 km/h, NG: 15 km/h, escorted day and night by TXR (Technical Examiner Railway)
    • Class C: BG: 25 km/h, MG: 25 km/h, NG: 15 km/h, escorted by SE (Signal and Telecom Engineer) (C&W), SE(P.Way) (Permanent Way) TI (Technical Inspector) during the day.

    Net Clearance Calculation

    • Allowance for lurch and bounce: 75 mm (3 inches) horizontal and 7.62 cm (3 inches) vertical.
    • Additional allowances on curves:
      • Lean due to super-elevation and overhang due to curvature, calculated using formulas.
      • Additional lurch on curves: 38 mm.
    • Vertical clearance: Top width exceeding track gauge necessitates adding the vertical tilt to the consignment height.

    ODC Movement Sanctioning Procedure

    • SS/SM (Station Supervisor/Senior Station Master) verifies if consignment exceeds maximum moving dimension upon booking.
    • Sr.DOM (Senior Divisional Operating Manager) obtains necessary sanction for ODC.
    • Application should include length, width, height, weight and a sketch of the consignment.
    • Sanction communication specifies the route.
    • SS/SM from originating station is responsible for route adherence and restriction compliance.
    • No relaxation of restrictions is allowed.

    ODC Loading

    • Consignment should be carefully loaded, lashed and packed to avoid shifting enroute.
    • SE(C&W) checks: load secure, within wagon capacity, axle load restrictions, under gear of the wagon.
    • Sr.SE(C&W) registers measurements and provides fit-to-run certificate for the specified route.
    • SS/SM notifies Sr.DOM/DOM and COM, with a copy sent to COM of other concerned railways.
    • Provisional sanction is not treated as final sanction and final sanction is required before dispatching the consignment.
    • SS/SM/YS/YM provides wagon details to the Control: wagon number, owning railway, wagon type, originating and destination stations, route.
    • Control/Divisional office issues permission for wagon dispatch via a specific train and date.
    • A caution order is given to the Guard and Loco pilot outlining speed restrictions and other precautions.

    ODC Movement on Electrified Sections

    • Overhead electrical equipment always remains ‘LIVE’ unless a power block is obtained from the Traction Power Controller.
    • All lines not included in a power block are live at 25000 Volts.
    • No person should climb on top of carriages or wagons when beneath overhead equipment unless the equipment is deactivated and grounded.
    • Prescribed clearance from contact wires for over dimensional loads on electrified sections:
      • At least 390 mm: No speed restriction required.
      • Between 390 mm to 340 mm: Speed restricted to 15 km/h.
      • Less than 340 mm : Speed restricted to 15 km/h and overhead power must be switched off.
      • Less than 100 mm clearance: Not permitted on electrified sections.
    • A representative of the Traction Department accompanies all ODC with clearances as specified in items (b) and (c) of sub para (3) above, over electrified sections.
    • A representative of the Traction Department accompanies all ODC loads with width exceeding 1981 mm for BG and 1910 mm for MG from the center line of the track.
    • Section Controllers and Traction Power Controller co-ordinate ODC movements on electrified areas.
    • A list of structures with restricted clearances and available clearance under overbridges should be maintained by Section Controllers and Traction Power Controllers.

    ODC Despatch

    • Final approval from competent authority is required for dispatch.
    • The train clerk/SM enters the number of wagons carrying ODC in the vehicle guidance in red ink for the Guard.
    • Before train starts, SS/SM informs Section Controller on duty, describing the train number with 'X' suffixed.
    • Dy. Chief Controller informs adjoining Control Offices about the movement of ODC.
    • Shunting of trains with ODC should be avoided, rough shunting against ODC wagon is prohibited.
    • SM and Guard ensure safe placement and securing of wagon/load when detached from train at station.
    • Accompanying staff should be provided with facilities such as extra wagons or brake vans if required.
    • Loads exceeding the capacity of two trucks (8-wheelers) should be loaded in three trucks, with the center vehicle carrying the entire weight and the end trucks serving as idlers.
    • Load is placed on packing in the center truck to ensure clearance from the floor of end trucks (not less than 152 mm) and upside clearance between load and side of truck (not less than 304 mm) in end trucks.

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    Over Dimensional Consignment (ODC) Operating Manual PDF

    Description

    This quiz covers the definition and guidelines for Over Dimensional Consignment (ODC) in transportation. It includes maximum moving dimensions for various gauges and necessary sanctions for bookings. Understand these crucial standards to ensure compliance during freight operations.

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