{"id":517,"date":"2020-07-22T23:54:14","date_gmt":"2020-07-22T23:54:14","guid":{"rendered":"http:\/\/www.electrans.es\/senalizacion-tranviaria\/"},"modified":"2024-08-27T11:35:15","modified_gmt":"2024-08-27T11:35:15","slug":"signalling-tram-systems","status":"publish","type":"page","link":"https:\/\/www.electrans.es\/en\/signalling-tram-systems\/","title":{"rendered":"Automatic train protection (ATP)"},"content":{"rendered":"[vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” equal_height=”yes” content_placement=”middle” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” bg_color=”#6a6b6f” bg_image=”434″ bg_position=”center center” bg_repeat=”no-repeat” scene_position=”center” top_padding=”5%” bottom_padding=”13%” text_color=”light” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” id=”built-by-riders” row_name=”Built By Riders” color_overlay=”#004074″ overlay_strength=”0.5″ gradient_direction=”left_to_right” enable_shape_divider=”true” shape_divider_position=”bottom” shape_divider_height=”200″ bg_image_animation=”fade-in” shape_type=”tilt_alt”][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/2″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][nectar_cascading_images image_1_bg_color=”rgba(191,191,191,0.01)” image_1_offset_x_sign=”+” image_1_offset_x=”0%” image_1_offset_y_sign=”+” image_1_offset_y=”0%” image_1_rotate_sign=”+” image_1_rotate=”none” image_1_scale=”1″ image_1_animation=”Fade In” image_1_box_shadow=”none” image_1_padding=”auto” image_1_max_width_desktop=”100%” image_1_max_width_mobile=”100%” image_1_image_width_mobile=”default” image_2_offset_x_sign=”+” image_2_offset_x=”15%” image_2_offset_y_sign=”+” image_2_offset_y=”25%” image_2_rotate_sign=”+” image_2_rotate=”none” image_2_scale=”1″ image_2_animation=”Fade In From Left” image_2_box_shadow=”none” image_2_padding=”auto” image_2_max_width_desktop=”100%” image_2_max_width_mobile=”100%” image_2_image_width_mobile=”default” image_3_url=”266″ image_3_offset_x_sign=”-” image_3_offset_x=”30%” image_3_offset_y_sign=”-” image_3_offset_y=”30%” image_3_rotate_sign=”+” image_3_rotate=”none” image_3_scale=”1″ image_3_animation=”Fade In From Right” image_3_box_shadow=”x_large_depth” image_3_padding=”auto” image_3_max_width_desktop=”100%” image_3_max_width_mobile=”100%” image_3_image_width_mobile=”default” image_4_offset_x_sign=”+” image_4_offset_x=”0%” image_4_offset_y_sign=”+” image_4_offset_y=”0%” image_4_rotate_sign=”+” image_4_rotate=”none” image_4_scale=”1″ image_4_animation=”Fade In” image_4_box_shadow=”none” image_4_padding=”auto” image_4_max_width_desktop=”100%” image_4_max_width_mobile=”100%” image_4_image_width_mobile=”default” border_radius=”none” image_loading=”default”][\/vc_column][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/2″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none” enable_animation=”true” animation=”fade-in”][vc_column_text]\n

Automatic train protection<\/h1>\n[\/vc_column_text][vc_column_text css=”.vc_custom_1724155272213{margin-top: 20px !important;padding-right: 10% !important;}”]\n

CAS-E system is a comprehensive and customized solution for urban rail network operators that provides integrated and safe transit of their rolling stock and passengers in urban environments, improving mobility and safety, while reducing the impact between the rolling stock and the rest of road users.<\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”100px” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”]

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CAS-E system controls and coordinates the position and speed of the rolling stock, protecting them against collisions due to undesirable operational situations with the rest of the traffic and preventing them from achieving conflicting routes or hazard situations.<\/p>\n

Suitable for main tracks, stations, shunting and depot areas, the CAS-E system comprises on-board, outdoor and indoor equipment. Designed to be compatible with elevated viaducts, underground tunnels or at street level, its track-side equipment is totally independent and decoupled from the rails, providing a transversal solution for Trams, Monorails and Rubber-Wheel Rolling Stock.<\/p>\n <\/div>[\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” top_padding=”30″ text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h2″ text_content=”System functionalities”][\/split_line_heading]

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  • Automatic Train Protection (ATP) \u2013 SIL-2 \/ SIL-4 architecture<\/strong>\n
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    • Speed Supervision: <\/strong>When the CAS-E system is turned on, the speed is obtained from the speed sensors and is continuously analyzed by the onboard process unit, supervising the entire line, so that the tram does not exceed the maximum speed allowed. When the rolling stock passes over an emitter beacon, the onboard equipment receives the speed conditions for the track ahead and calculates the braking curves to reach the target point with the required target speed in safety conditions<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n <\/div>[image_with_animation image_url=”5986″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default” margin_top=”-20″]
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        • Signal Pass at Danger (SPAD): <\/strong>To prevent trams from passing stop signals, emitter beacons are strategically installed:
          \nPrevious beacon<\/span>: Located at braking distance from the signal, it instructs onboard equipment to stop if the signal shows a stop aspect, calculating braking curves for safety operation. In case of exceeding speed limits, the CAS-E system acts by three programmable action levels or allows maximum speed if the signal is permissive.
          \nSignal beacon<\/span>: Positioned just before the signal at emergency braking distance, it immediately commands braking if the signal shows a stop aspect by activating maximum service brakes and tram safety brakes if necessary, or sends a “go” command if the signal is permissive. Signal aspects are communicated via the interlocking system through the beacon controller’s I\/O interface.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n <\/div>[image_with_animation image_url=”5990″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default” margin_top=”-20″]
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          • Rolling stock detection ECB<\/strong> – SIL-3 architecture: <\/strong>The CAS-E system provides a state-of-the-art detection system using safe radiofrequency communication between the rolling stock and track-side equipment. CAS-E does not require, although it is compatible, the use of classic track circuits or axle counters which are not suitable anymore in urban environments where new requirements such as the esthetic of the installation, low level of maintenance and high availability. The system uses receiving beacons on the ground to detect the passage of rolling stock by receiving radio frequency messages continuously emitted by on-board antennas located under the driving cabins. As a result, the beacon controller can transmit to the interlocking when the head and the back of the rolling stock are just getting the point and determining its position on the track.<\/li>\n<\/ul>\n <\/div>[image_with_animation image_url=”5994″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default” margin_top=”-20″]
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            • Route request: <\/strong>In the CAS-E system, route requests straight, right and left can be sent via onboard pushbuttons by the driver or automatically by the Traffic Management System (TMS). These requests, continuously transmitted by the onboard CAS-E equipment’s antenna, specify the desired route within a 10-second or 100-meter window. If no specific request is made, a default “Not pressed” request is transmitted. A receiver beacon located before a switching point receives these messages and transmits them to a beacon controller, which communicates with the interlocking and blocks the route if the safety conditions allow it.<\/li>\n
            • Auxiliary functionalities: <\/strong>Beacon linking, temporary speed restrictions, TMS location refresh, anti-rollback, doors management, events and alarms recording.<\/li>\n<\/ul>\n <\/div>[\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” tablet_text_alignment=”default” phone_text_alignment=”default” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][split_line_heading animation_type=”line-reveal-by-space” font_style=”h2″ text_content=”Main components”][\/split_line_heading]
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              • On-board equipment:<\/strong> Comprehends a processing unit and an antenna at each rolling stock cabin and two dual-channel speed sensors.<\/li>\n<\/ul>\n <\/div>[image_with_animation image_url=”5998″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default” margin_top=”-35″ margin_bottom=”-20″]
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                • Field equipment:<\/strong> It consists of beacons installed along the line. These beacons can transmit data (emitter beacons<\/strong>) or receive it (receiver beacons<\/strong>), according to its functionality.<\/li>\n<\/ul>\n <\/div>[image_with_animation image_url=”6002″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default” margin_top=”-35″ margin_bottom=”-20″]
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                  • In-door equipment:<\/strong> It consists of a standard 19\u201d subrack with electronic boards (CPU, safety input\/outputs, etc.) called Beacon Controller in charge of controlling the entire set of beacons which allows communications with third-party interlocking by inputs\/outputs or safety protocols based in EULYNX SCI_IO. If the signalling system is controlled by ENCETRANS 2oo2 interlocking, the functionalities of the Beacon Controller will be integrated into the interlocking itself.<\/li>\n<\/ul>\n <\/div>[image_with_animation image_url=”6006″ animation=”Fade In” hover_animation=”none” alignment=”center” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default” margin_top=”-35″][\/vc_column][\/vc_row][vc_row type=”full_width_background” full_screen_row_position=”middle” column_margin=”default” equal_height=”yes” content_placement=”middle” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” bg_color=”#ffffff” bg_image=”228″ bg_position=”center center” bg_repeat=”no-repeat” scene_position=”center” top_padding=”80″ bottom_padding=”80″ text_color=”light” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” color_overlay=”#004074″ overlay_strength=”0.5″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_shadow=”none” column_border_radius=”none” column_link_target=”_self” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”6\/12″ tablet_width_inherit=”default” tablet_text_alignment=”center” phone_text_alignment=”center” column_border_width=”none” column_border_style=”solid” bg_image_animation=”none”][nectar_highlighted_text color_type=”regular” highlight_color=”#ff1053″ style=”half_text”]\n

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