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<p>Simulation of the old ATS, SSI and SACEM systems of the Istanbul Metro</p>
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<details>
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<summary>Navigation</summary>
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<ahref="/">Home</a>
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<ahref="/simulation/">Simulation</a>
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<br>
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<span>Docs</span>
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<hr>
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<ahref="/docs/signals/">Signals</a>
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<ahref="/docs/userinterface/">User Interface</a>
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</details>
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<h2>Signals</h2>
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<p>Signals are displayed on the mimic diagram as shown below.</p>
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<imgsrc="/assets/signaldetails.jpg" alt="">
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<br>
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<small>Screenshot of a signal</small>
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<p>Depending on the situation, a signal and its buttons may be shown with different colors.</p>
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<p></p>
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<h3>Aspect</h3>
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<imgsrc="/assets/signalaspect.jpg" alt="">
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<p>The signal's aspect may be as following:</p>
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<ul>
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<li>
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<b>Red</b>
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<p>There is no route, stop.</p>
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</li>
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<li>
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<b>Green</b>
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<p>There is a train route, passing the signal is allowed.</p>
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<p>Unlike most signalling systems, the signal will turn green as long as there is at least one track circuit with a subroute on it. The ATC will continue to supervise the train movement.</p>
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</li>
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<li>
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<b>Flashing Green</b>
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<p>There is a shunting route, expect stop at the next shunting panel, passing the signal is allowed.</p>
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</li>
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<li>
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<b>Flashing Red</b>
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<p>The route has been cancelled and is inside the safety timer. A cancelled route will be completely removed after 60 seconds has passed.</p>
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<p>This aspect is special to the ATS, and is shown as red on the physical signals.</p>
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</li>
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</ul>
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<h3>Signal Button</h3>
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<imgsrc="/assets/signalbutton.jpg" alt="">
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<p>If the signal is closed and fleeting is off, the signal button will display a gray background with a yellow arrow. Otherwise, the background will be white and the arrow black.</p>
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<p>Route setting functions are accessed via this button.</p>
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<h3>Fleeting Button</h3>
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<imgsrc="/assets/fleetingbutton.jpg" alt="">
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<p>Fleeting allows the same route to be set for all trains automatically to reduce the workload of the dispatcher. Only some signals have this function.</p>
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<p>If fleeting is disabled, the fleeting button will display a gray background with a yellow F letter. Otherwise, the background will be white and the F letter black.</p>
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<p>Fleeting functions are accessed via this button.</p>
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<h3>Cancel Button</h3>
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<imgsrc="/assets/cancelbutton.jpg" alt="">
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<p>This button is used to cancel a route.</p>
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<h3>Target Button</h3>
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<imgsrc="/assets/targetbutton.jpg" alt="">
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<p>Sometimes, the target signal of a route may not be on the same mimic diagram as the start signal. In this case, a target button is placed.</p>
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<p>It has the same functionality as a signal button and is displayed with a thinner arrow.</p>
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<h3>Examples</h3>
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<ul>
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<li>
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<h3>Green, Fleeting On</h3>
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<imgsrc="/assets/signal.jpg" alt="">
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<p>There is a route set and fleeting is enabled.</p>
<p>Simulation of the old ATS, SSI and SACEM systems of the Istanbul Metro</p>
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<details>
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<summary>Navigation</summary>
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<ahref="/">Home</a>
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<ahref="/simulation/">Simulation</a>
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<br>
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<span>Docs</span>
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<hr>
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<ahref="/docs/signals/">Signals</a>
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<ahref="/docs/userinterface/">User Interface</a>
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</details>
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<h2>User Interface</h2>
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<p>The user interface consists of multiple pages. The usual page during operation is a mimic diagram that shows the signal objects on an area inside the line.</p>
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<imgsrc="/assets/uidiagram.jpeg" alt="">
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<small>Diagram of the user interface</small>
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<p>There is a set of buttons available at any time for navigation between different pages.</p>
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<imgsrc="/assets/navigationbuttons.jpeg" alt="">
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<small>Navigation buttons</small>
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<p>The home button takes the user to the last used mimic diagram. The other buttons take the user to the respective screen/window.</p>
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<h3>Access</h3>
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<p>The access page allows for direct access to any of the 3 mimic diagrams of the line.</p>
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<imgsrc="/assets/accesspage.jpeg" alt="">
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<small>Screenshot of the access page</small>
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<h3>System Supervision Activity</h3>
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<p>The system supervision activity window displays the current system states.</p>
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<imgsrc="/assets/systemsupervision.jpeg" alt="">
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<h3>Alarm Display</h3>
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<p>The alarm display lists the current alarms and logged events. Since there is currently no support for failure simulations, only events are listed.</p>
<p>Simulation of the old ATS, SSI and SACEM systems of the Istanbul Metro</p>
12
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<details>
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<summary>Navigation</summary>
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<ahref="/">Home</a>
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<ahref="/simulation/">Simulation</a>
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<br>
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<span>Docs</span>
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<hr>
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<ahref="/docs/signals/">Signals</a>
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<ahref="/docs/userinterface/">User Interface</a>
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</details>
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<h2>Home</h2>
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<ahref="./simulation/">Go to the simulation ></a>
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<p>ATSSim simulates the old signalling system used in the Istanbul Metro's first line (now called M2) between the years of 2000-2009. The following subsystems powered the train operation in this period:</p>
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<ul>
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<li>
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<p><b>SSI (Solid State Interlocking)</b> - Main Interlocking</p>
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