CAD Standards and Procedures :- References for The CAD Standards and procedures under which signalling system modifications shall be undertaken for JNUP project. (The list is not exhaustive)

1. 3CU 00550 0295 PCZZA
2. 8BH 04002 5034 URZZA
3. 8BH 04002 5033 URZZA

4. 8BH 04002 0056 UEZZA
5. LU Standard 2-01014-004 & E1122A4
6. RT/E/C/11701

Introduction

The purpose of these CAD and Procedures document is to define the method and process for the
production of Computer Aided Design and Detail (CAD) data and to maintain consistency among all drawings and data produced for Thales JNUP project.

MicroStation

All application drawings produced by Thales will be produced Using Microstation V8 2004. Signatures All signatures on “ Original” hard copy drawing to be issued shall be hand written/signed in “BLUE” ink.Deliverable Documentation Hard copies of drawings for formal submission to the client shall be in the form of copies of duly signed “Original” prints where the original drawing(s) are held at London.

Informal Submissions

Where completed drawings are submitted for advance information ahead of formal submission, they shall be fully signed copies oforiginals and rubber stamped “ADVANCE INFORMATION ONLY” or “FOR INFORMATION ONLY”. If the drawing are incomplete or unsigned, copies for issue shall be rubber stamped “UNCONTROLLED COPY”, “PRELIMINARY”, “PROVISIONAL” or “FOR INFORMATION ONLY” and supported by formal covering letter and/or transmittals. All drawing submission to the client shall be handled by the document controllers/Technical document controllers in accordance with thales document transmittal policies.

Roles and Responsibilities

Design Managers: The Design Managers (UK and canada) are responsible for independently approving any new or modified cells, mastersheets, standard circuits, border templates and drawings. Signalling Principles

Designer/Verifier:

The Signalling Principles Designer are responsible for independently checking new or modified cells, master sheets, standard circuits, border templates and drawings.

JNUP CAD Manager

The JNUP CAD Manager will check (audit) all the cells, master sheets, standard circuits, border templates and drawings for compliance, prior to their issue and use. The JNUP CAD Manager will carry out regular audits to ensure that all designs are being produced in accordance with this document.

JNUP CAD Administrators

The CAD administrator(s) will liaise with the JNUP CAD Manager on all CAD related issues. Technical Document ControllersThe Technical Document controllers are responsible for the control of all drawings between Thales and all external parties, including TLL.

Drawing Format

The standard drawing template size 420mm X 297mm as the standard printed sheet size for all internal drawings. Certain  circumstances may dictate the use of a larger sheet format. On the JNUP project, TLL have provided standard A1 and A3 templates. The use of the A1 template shall be considered for use where the A3 template is unsuitable.

Border Templates

alc-sig-a3lb.dgn for A3 template – landscape border template with title block across the bottom of the sheet for bookwiring. All Volume 2 Bookwiring sheets shall use this border template for final stage (Masters). alc-sig-a3largelb.dgn for larger border – used in certain circumstances where COC is to be included in the circuits, in final stage (Recovery of COC) the border will be reverted back to standard a3lb border

A3 Bookwiring Drawings

Drawing title blocks are cells that are user create seed files. All border templates are referenced into seed files and contain the following information in the title block.The data fields shall be edited with relevant details with the exception of signature & date columns which will be completed by hand in BLUE ink.

SEED FILES

A seed file comprises Border template, Border cells and all essential data settings.

SEED FILE

seed2d-a3.dgn for a3lb border template. The same seed file shall be used for A3 large lb border template.The seed files contain data fields in all locations where data is required to be entered and all the settings required to produce drawing for the JNUP project.The correct use of seed files shall be followed. The seed files and associated cells shall not be merged and/or dropped.

Drawing Fonts

The standard font for all drawings shall be the TLL corporate font “151”Arial for Microstation produced documentation including drawing templates and title blocksFor A3 Drawings, (Bookwirings) the following font sizes shall be used:

Font Height                    Font Width                            Application
   1.8                                          1.8                                    General HW drawings
   2.0                                         1.6                                     Superscript/subscript
   2.5                                         2.0                        General: normal font size for A3 drawings
   3.5                                         2.8                                          labels and Titles
   5.0                                         4.0                                             Special use

Generally for A1 drawings the following Font styles shall be used 3.5mm x 2.8mm (the font size is acceptable for use on A1 drawing that may be reduced to A3 for the purposes of issuing drawings to the client), other sizes normally accepted are 5mm x 4mm for labels and titles and maximum 7mm x 5.6mm.

Line Weight :- Line weight will be set to 0 (zero) by level in the level manager
Line Styles :- Line Styles will be set to 0 (zero) by level in the level manager
Dimension Styles:- Dimension will have all attributes set ‘by levels’

Drawing Grid System

The grid system as described below shall be applied to all drawings except those drawings that must be drawn to scale. For bookwirings, the grid system is mandatory. Grid master 2mm, grid reference 8mm to be followed.

Drawing Notes

Notes should start 2 dot spaces from the bottom and 2 dot spaces from the side. Notes will be labelled starting with 1 and going down. Settings for conventional signalling diagrams are contained in seed file seed2d_a3.dgn Master units & Sub units are mm Resolution Sub units per master unit are 1000

Circuit Diagram Drawing Production

1. Circuit diagrams shall be produced using as Master grid for placement of cells. Circuit diagrams shall be produced using an 8mm grid reference for placement of cells and “place smart line” with the “join Elements” box checked so that lines that represent wires will be a single element with as few vertices as possible.

Drawing Numbering

X001….series for index sheets
R001….series for revision history sheets
C001….series for control tables
S001….series for Signal plans

Drawing Revisions

P1, P2, P3 for informal (Preliminary) copies for information only. NOT TO BE USED FOR ANY OTHER PURPOSE. A, B, C etc. for Acceptance, Installation, Testing/commissioning and As-Built drawings.

JNUP Drawing numbering Convention

Drawing Number
ALC-J003-N391-SIG-SCH-0001
ALC-Originator
J003-Location

N391-Project reference
SIG-Discipline
SCH-Type
0001-ID

CAD File Generation

All electronically generated drawings can be manually signed by the appropriate person at each stage of the process prior to issuing the drawing. All CAD drawings will be produced using cells only. These cells will have attributes making the cells unique and will enable data extraction such as contact analysis, etc. The CAD manager will maintain the cell library.

All electronically generated drawings can be manually signed by the appropriate person at each stage of the process prior to issuing the drawing. All CAD drawings will be produced using cells only. These cells will have attributes making the cells unique and will enable data extraction such as contact analysis, etc. The CAD manager will maintain the cell library.

Should new cells be required to be added into the cell library for inclusion in any drawing, the JNUP CAD manager or
CAD administrator should be informed and only CAD manager or CAD administrator shall place the cell(s) in an approved cell library. New cells has to be checked for compliance of CAD standards and Design Manager and Principle Designer has to approve the cells. Approved cells shall be used for the production of all drawings.

Cells should not be copied, dropped, shared, nested and or modified as this will lead to failure in any automated
processes employed. Cells for conventional signalling circuits shall be 8mm from construction marker to construction marker. The snap points shall be on the grid and hence it should be minimum 8mm grid reference from snap to snap.

Standard Circuits (Generic circuits)

A Standard circuit is a complete circuit that requires no changes to it with the exception of contact and relay names. These circuits will be checked and approved by the principle designer and design Manager and then checked by the CAD manager for compliance before being placed in the “Standard Circuits”.

Exiting a Drawing after working on it or viewing

Before exiting a drawing, whether working on it or just viewing it, the file must be restored to zoom fit the screen.

To prevent Loss of work

Drawings and other documentation shall not be worked on while resident on a local hard drive, the active copy must be the copy of the server. A copy can be kept on a local hard drive as a backup only.

Good Quality Drawing

A good quality drawing is a drawing that is produced in an orderly manner. All notes line up. All balloons are in a
straight line and in numerical order. All details are in one area and in sequence, i.e. “DETAIL A”, DETAIL B” etc.

Microstation drawings

Microstation drawings are project specific and drawing templates have been supplied by the customer. The formatting
of Microstation drawings is based on customer requirements and standards.

Circuit Diagrams

On bookwiring drawings, a 2mm Grid Master, 8mm Grid Reference shall be used. This is automatically configured
using a macro that is initiated as drawings are opened.Cells will be aligned vertically and horizontally where possible and will be placed with the grid snap set to “on”.

Cell Scaling

Cells shall not be scaled but shall be placed using “Scale 1” having been created at the correct scale.

Signalling, Scale, Scheme and Bonding plans

The insertion scale of cells for use in signalling and scale plans is to be scale 1.

The Default settings for all levels is “By Level”. See tables below.
Colour shall be By Level
Line Type shall be By Level
Line Weight shall be By Level
Note: Colours listed in the tables below are Colours relating to the “Default” colour table.

Table for construction of Conventional Signalling drawings

Line weight 1 should be used as above except for “Wires” on combined Red/Green drawings where line weights should be increased to weight 3 on the lines only, The Level Manager settings should not be changed. This is so that they remain clear on printed and photocopied media. Line weight 4 and above should be avoided where possible except when required.

What is Microsation?

Microstation is a software like AutoCAD and other draughting software that using for Computer aided designing.  Almost all commands in microstation is similar to AutoCAD for 2D drawings, but for 3D designing, Microstation have it’s own additional module like Modular.

Advantages of Microstation from AutoCAD

• Microstation required only of 5MB free space.
• This is a duel window/monitor based application.
• Reentering of command is not required
• Editing attributes in the cell (blocks in AutoCAD) is possible.
• Multiple views (upto 8) of the drawing is simplifying the view structure.

• Creating Macro application is very user friendly.
• Editing datafields (Special type of text) is more useful for standardisation of text properties.
• Always getting information about active commands from status bar.

Working with Design Files

A MicroStation document file is called a design file. MicroStation’s File menu has items for creating, opening, and saving design files. These file management operations and others can also be performed using the MicroStation Manager dialog box

You cannot have more than one design file open or active in MicroStation at a time. If you open a design file when one is already active, MicroStation automatically closes the first file. However, you can view the contents of other design files by attaching them for reference to the active design.

When you create a design file, MicroStation copies one of the provided templates or seed design files. The seed file is copied to a new file name that you specify in the Create Design File dialog box.

To open a design file as the active design file

From the File menu, choose Open.
The Open Design File dialog box opens.

To create a design file and open it as the active design file

From the File menu, choose New.
The Create Design File dialog box opens.
The default filter is “*.dgn.”

To “save as”

From the File menu, choose Save As.
The Save Design As dialog box opens.

Using MicroStation Manager

When you start MicroStation without designating a design file to be opened automatically, the first dialog box you see is MicroStation Manager.

MicroStation Manager can be used to perform a variety of useful file management functions including backing up, copying, deleting, compressing, merging, renaming, and opening design files, as well as creating new directories and backing up entire directories. These functions are performed by choosing items in MicroStation Manager’s File and Directory menus, which have features beyond those in other dialog boxes

Exiting MicroStation

As you work, MicroStation saves all changes you make to the active design file to disk (assuming you have not turned off the default “Immediately Save Design Changes” toggle under Workspace>Preferences>Operations). After you close the design file, you can no longer undo changes with MicroStation’s Undo feature. Therefore, be sure to undo any unwanted changes to the design file before you exit MicroStation.

To exit MicroStation

From the File menu, choose Exit.

or

From the application window menu (if one exists), choose Close.

or

In the MicroStation Manager dialog box, click Cancel.

Using Drawing Tools

MicroStation has dozens of drawing tools (called tools, for short). They are organized for convenient selection in tool boxes. A tool box that is open on the screen in its own window is said to be floating. You can change the arrangement of tools in a floating tool box by resizing its window.

Tools are represented in tool boxes by icons. For simplicity, the term “tool” is used to refer both to a tool and its icon.

The Main tool frame opens automatically the first time you start MicroStation along with the Primary tool box and the Standard tool box. The Main tool frame is docked by default to the left edge of the MicroStation window, and the Primary and Standard tool boxes are docked by default to the top edge.

MicroStation has dozens of drawing tools (called tools, for short). They are organized for convenient selection in tool boxes. A tool box that is open on the screen in its own window is said to be floating. You can change the arrangement of tools in a floating tool box by resizing its window.

To open a child tool box of the Main tool frame

  In the Main tool frame, press on the tool that is the “representative” from the child (and hold the Data button down)..
For example, to open the Linear Elements tool box, press on the second tool in the right-hand column in the Main tool frame (Place SmartLine in the default tool box configuration). As long as you hold down the Data button, the Linear Elements tool box remains open. You can drag across the tool box to select a tool. When you release the Data button, the tool box closes and the selected tool displays in the Main tool frame.

In the Main tool frame, press on the tool from the desired child, and drag the child off the Main tool box. You have to drag the pointer a certain distance from the Main tool box before it is “torn off.” When the pointer is far enough away, the tool box’s outline displays dynamically. or Use the Tools menu or Use the Tool Boxes dialog box.

For example, to open and float the Linear Elements tool box using the first method, press on the second tool in the right-hand column of the Main tool frame and drag the Linear Elements tool box off of the Main tool frame.

Working with the selected tool

MicroStation has several aids to help you use tools. Settings that affect how a tool works can be controlled in the tool settings window. The Status Bar along the bottom border of the MicroStation window displays prompts and messages about the selected tool.

Tool settings

Tool settings affect the operation of a specific tool. For example, the Method setting sets how a rectangle is drawn with the Place Block tool. In a tool box that is attached to its parent (not floating), tools with associated settings display a triangle.

Rather than forcing you to adjust a tool’s settings each time you select that tool, tool settings remain in effect until you change them. This makes MicroStation more efficient to use, but also means you must keep the active tool’s settings in mind or displayed on the screen.

Tool Settings window

The tool settings window is used to adjust tool settings. For example, if the Place Block tool is selected, controls for adjusting the tool settings Method, Area, Fill Type, and Fill Color are displayed in the window, and the window’s title bar reads “Place Block.” If closed, the window opens automatically when a tool with settings is selected.

Checking the status bar

It is recommended that you make it a habit to frequently check the status bar at the bottom of the application window (or the screen).

It displays a variety of useful information, including prompts, messages, and the name of the selected tool. If you are not sure “where you are” with a tool, look in the status bar.

The status bar is divided into two sections:

Left-hand section of status bar

The left-hand section ordinarily shows the name of the selected tool (or view control) followed by either a greater-than sign symbol (>) or a colon (:) and message text.

• Message text that follows a “>” is the selected tool’s prompt; a tool’s prompts guide you step by step as you the perform an operation with a tool.
• Message text that follows a “:” is a message that indicates a possible problem.

As you move the pointer on tools in a tool box, the name of the selected tool and the associated message text are replaced with a description of the tool over which the pointer is located. This is intended as a form of on-line assistance.

Right-hand section of status bar

The right-hand section ordinarily consists of a series of fields. From left to right, the status information indicated in these fields is as follows:

• Snap Mode setting. In MicroStation, Snap Mode cannot be changed.
• The Locks icon does not indicate status information. Clicking it provides an alternate means of access to the Settings menu’s Locks sub-menu.
• Active Level setting.
• The count of selected elements . If this field is blank, no elements are selected.
• Whether the fence is placed . If this field is blank, the fence is not placed.
• Whether changes to the active design file are unsaved. If the field is blank, there are no unsaved changes. If the field has a red icon with an “X” through it, the active design file is open for “read-only” access.

When you enter a tentative point or request quantitative information — for example, distances or angles using tools in the Measure tool box — the fields in this section to the right of the Snap Mode field are temporarily replaced with a single message field.

To restore the fields to the right-hand section

Press the Reset button. (To find the location of the Reset button on your system’s graphic input device, see Using the Mouse or Digitizing Tablet.) Click the status bar.

Preparing to Draw

Except for user preferences, there are no default settings in MicroStation . The settings described in the following sub-sections can be saved in the design file on disk. To preserve changes to these design file settings between sessions, you must explicitly save the settings.

Seed files

When you create a design file, you identify a seed file as a template for the design file. The new design file is actually a copy of the seed file.

Seed files do not (necessarily) contain elements, but, like other design files, they do contain settings and view configurations. Having a seed file with customized settings keeps you from having to adjust settings each time you create a design file. If you wish, you can have a different seed file for each type of drawing you do.

To select a seed file

1.From the File menu, choose New.
The Create Design File dialog box opens.

2.In the Seed File section, click the Select button.
The Select Seed File dialog box opens. The default filter is “*.dgn.“

3.(Optional) To list all files in the Files list box, choose All Files from the List Files of Type option menu.

4.(Optional) To select a different source disk drive, choose the desired drive from the Drives option menu.

5.(Optional) To select a different source directory, use the Directories list box.

6.In the Files list box, select the desired seed file.
or
In the Files field, key in the name of the desired seed file.

7.Click OK.

Using View Controls

View controls are used to manipulate a view, the portion of the design displayed in a view window. The most commonly used view controls can be selected in the View Control Bar on the bottom border of each view window

Some of the most useful view controls include the following:

The Update View view control is provided to redraw the display when an operation leaves a view with an incomplete display. For example, if you delete an element that crosses in front of (and partially obscures) another element, the part of the underlying element that should be revealed might not be redrawn automatically.

Window Area, which is used to designate a smaller area to display in another view to see details.

Fit View, which is used to fit the entire design in a view (for the “big picture” or to get your bearings).

Rotate View, which is used to rotate a view.

View Previous, which is used like an Undo function to negate previous viewing operations, as many as eight per view.

Tool Bars

Primary Tool Bar

Colour: This Displays the active colour

Level : This displays the active level

Line Style: This displays the active Line style

Line Weight: This Displays the active Line Weight

Tool Bars                                                                                     

Setting View Attributes

Views have a number of attributes that you can adjust individually for each view window.

• Some view attribute settings determine whether parts of a design — elements on particular levels, text, fill, and drawing aids such as the grid — are displayed.
• Others determine the manner in which the design is displayed — with or without a background image or dynamic updating, for example.

Level display

Each element in the design is on one of 63 drawing levels. Levels are analogous to transparent overlays: In different combinations they make it easier to see parts of a design; together, they show the entire design. The Active Level is the level on which elements are placed.

Levels can be named and grouped hierarchically. For example, levels named “chairs,” “tables” and “desks” could be grouped together as “furniture” and turned on or off as a group. In turn, “furniture” could be a part of a higher level group of levels.

Other view attributes

View attributes other than level display are set in the View Attributes dialog box. Some determine whether parts of a design and drawing aids will be displayed. Others determine how the design file is displayed.

To turn other view attributes on or off

1.From the Settings menu, choose View Attributes (or press < ctrl-B >). or From any view window’s control menu, choose View Attributes.
The View Attributes dialog box opens.

2.From the View Number option menu, choose the number of the view whose attributes you want to change.

3.Turn the desired view attributes on or off by clicking the check boxes to the left of the appropriate items.

4.Click the Apply button.

Tool Bars, Setting View Attributes, Level display, Other view attributes, To turn other view attributes on or off