diff --git a/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSInfra.java b/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSInfra.java
index 7e09f71b770..7eaf80e1675 100644
--- a/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSInfra.java
+++ b/core/osrd-railjson/src/main/java/fr/sncf/osrd/railjson/schema/infra/RJSInfra.java
@@ -22,7 +22,7 @@ public class RJSInfra {
             .build()
             .adapter(RJSInfra.class);
 
-    public static final transient String CURRENT_VERSION = "3.4.1";
+    public static final transient String CURRENT_VERSION = "3.4.2";
 
     /** The version of the infra format used */
     public String version;
diff --git a/editoast/map_layers.yml b/editoast/map_layers.yml
index f7aa9d170f6..c15ec274bda 100644
--- a/editoast/map_layers.yml
+++ b/editoast/map_layers.yml
@@ -46,7 +46,7 @@ layers:
         joins:
           - inner join infra_object_speed_section speed_section on speed_section.obj_id = layer.obj_id and speed_section.infra_id = layer.infra_id
         where:
-          - not (speed_section.data @? '$.extensions.lpv_sncf.z')
+          - not (speed_section.data @? '$.extensions.psl_sncf.z')
       sch:
         on_field: schematic
         cache_duration: 3600
@@ -54,9 +54,9 @@ layers:
         joins:
           - inner join infra_object_speed_section speed_section on speed_section.obj_id = layer.obj_id and speed_section.infra_id = layer.infra_id
         where:
-          - not (speed_section.data @? '$.extensions.lpv_sncf.z')
+          - not (speed_section.data @? '$.extensions.psl_sncf.z')
 
-  lpv:
+  psl:
     table_name: infra_layer_speed_section
     id_field: id
     views:
@@ -67,7 +67,7 @@ layers:
         joins:
           - inner join infra_object_speed_section speed_section on speed_section.obj_id = layer.obj_id and speed_section.infra_id = layer.infra_id
         where:
-          - speed_section.data @? '$.extensions.lpv_sncf.z'
+          - speed_section.data @? '$.extensions.psl_sncf.z'
       sch:
         on_field: schematic
         cache_duration: 3600
@@ -75,7 +75,7 @@ layers:
         joins:
           - inner join infra_object_speed_section speed_section on speed_section.obj_id = layer.obj_id and speed_section.infra_id = layer.infra_id
         where:
-          - speed_section.data @? '$.extensions.lpv_sncf.z'
+          - speed_section.data @? '$.extensions.psl_sncf.z'
 
   track_section_links:
     table_name: infra_layer_track_section_link
@@ -179,8 +179,8 @@ layers:
         joins:
           - inner join infra_object_catenary catenary on catenary.obj_id = layer.obj_id and catenary.infra_id = layer.infra_id
 
-  lpv_panels:
-    table_name: infra_layer_lpv_panel
+  psl_signs:
+    table_name: infra_layer_psl_sign
     id_field: id
     views:
       geo:
diff --git a/editoast/migrations/2023-09-15-135824_lpv_to_psl_and_panel_to_sign/down.sql b/editoast/migrations/2023-09-15-135824_lpv_to_psl_and_panel_to_sign/down.sql
new file mode 100644
index 00000000000..5fa77bdb66e
--- /dev/null
+++ b/editoast/migrations/2023-09-15-135824_lpv_to_psl_and_panel_to_sign/down.sql
@@ -0,0 +1,9 @@
+alter table infra alter column railjson_version set default '3.4.1';
+
+update infra set railjson_version = '3.4.1';
+
+alter table infra_layer_psl_sign rename to infra_layer_lpv_panel;
+
+update infra_object_speed_section set data['extensions']['lpv_sncf'] = data['extensions']['psl_sncf'];
+
+update infra_object_speed_section set data['extensions'] = data['extensions'] - 'psl_sncf';
diff --git a/editoast/migrations/2023-09-15-135824_lpv_to_psl_and_panel_to_sign/up.sql b/editoast/migrations/2023-09-15-135824_lpv_to_psl_and_panel_to_sign/up.sql
new file mode 100644
index 00000000000..19c6ec7cfbe
--- /dev/null
+++ b/editoast/migrations/2023-09-15-135824_lpv_to_psl_and_panel_to_sign/up.sql
@@ -0,0 +1,9 @@
+alter table infra alter column railjson_version set default '3.4.2';
+
+update infra set railjson_version = '3.4.2';
+
+alter table infra_layer_lpv_panel rename to infra_layer_psl_sign;
+
+update infra_object_speed_section set data['extensions']['psl_sncf'] = data['extensions']['lpv_sncf'];
+
+update infra_object_speed_section set data['extensions'] = data['extensions'] - 'lpv_sncf';
diff --git a/editoast/src/generated_data/error/speed_sections.rs b/editoast/src/generated_data/error/speed_sections.rs
index fbf790b68a5..df529fd9868 100644
--- a/editoast/src/generated_data/error/speed_sections.rs
+++ b/editoast/src/generated_data/error/speed_sections.rs
@@ -88,8 +88,8 @@ pub fn check_overlapping(infra_cache: &InfraCache, _: &Graph) -> Vec<InfraError>
     // Iterate over all the speed sections insure we don't report duplicated errors
     for speed_section in infra_cache.speed_sections().values() {
         let speed_section = speed_section.unwrap_speed_section();
-        // Ignore LPV (they can overlap)
-        if speed_section.extensions.lpv_sncf.is_some() {
+        // Ignore PSL (they can overlap)
+        if speed_section.extensions.psl_sncf.is_some() {
             continue;
         }
         for track_range in speed_section.track_ranges.iter() {
diff --git a/editoast/src/generated_data/mod.rs b/editoast/src/generated_data/mod.rs
index 7271236b184..51aaefe34b8 100644
--- a/editoast/src/generated_data/mod.rs
+++ b/editoast/src/generated_data/mod.rs
@@ -4,9 +4,9 @@ mod buffer_stop;
 mod catenary;
 mod detector;
 mod error;
-mod lpv_panel;
 mod neutral_section;
 mod operational_point;
+mod psl_sign;
 mod signal;
 mod speed_section;
 mod switch;
@@ -18,9 +18,9 @@ use buffer_stop::BufferStopLayer;
 use catenary::CatenaryLayer;
 use detector::DetectorLayer;
 use error::ErrorLayer;
-use lpv_panel::LPVPanelLayer;
 use neutral_section::NeutralSectionLayer;
 use operational_point::OperationalPointLayer;
+use psl_sign::PSLSignLayer;
 use signal::SignalLayer;
 use speed_section::SpeedSectionLayer;
 use switch::SwitchLayer;
@@ -100,7 +100,7 @@ pub async fn refresh_all(
         DetectorLayer::refresh_pool(db_pool.clone(), infra, infra_cache),
         OperationalPointLayer::refresh_pool(db_pool.clone(), infra, infra_cache),
         TrackSectionLinkLayer::refresh_pool(db_pool.clone(), infra, infra_cache),
-        LPVPanelLayer::refresh_pool(db_pool.clone(), infra, infra_cache),
+        PSLSignLayer::refresh_pool(db_pool.clone(), infra, infra_cache),
         NeutralSectionLayer::refresh_pool(db_pool.clone(), infra, infra_cache),
     )?;
     log::debug!("⚙️ Infra {infra}: object layers is generated");
@@ -121,7 +121,7 @@ pub async fn clear_all(conn: &mut PgConnection, infra: i64) -> Result<()> {
     DetectorLayer::clear(conn, infra).await?;
     OperationalPointLayer::clear(conn, infra).await?;
     TrackSectionLinkLayer::clear(conn, infra).await?;
-    LPVPanelLayer::clear(conn, infra).await?;
+    PSLSignLayer::clear(conn, infra).await?;
     ErrorLayer::clear(conn, infra).await?;
     NeutralSectionLayer::clear(conn, infra).await?;
     Ok(())
@@ -143,7 +143,7 @@ pub async fn update_all(
     DetectorLayer::update(conn, infra, operations, infra_cache).await?;
     OperationalPointLayer::update(conn, infra, operations, infra_cache).await?;
     TrackSectionLinkLayer::update(conn, infra, operations, infra_cache).await?;
-    LPVPanelLayer::update(conn, infra, operations, infra_cache).await?;
+    PSLSignLayer::update(conn, infra, operations, infra_cache).await?;
     ErrorLayer::update(conn, infra, operations, infra_cache).await?;
     NeutralSectionLayer::update(conn, infra, operations, infra_cache).await?;
     Ok(())
diff --git a/editoast/src/generated_data/lpv_panel.rs b/editoast/src/generated_data/psl_sign.rs
similarity index 85%
rename from editoast/src/generated_data/lpv_panel.rs
rename to editoast/src/generated_data/psl_sign.rs
index 0344a44dc68..e4d7bb0091d 100644
--- a/editoast/src/generated_data/lpv_panel.rs
+++ b/editoast/src/generated_data/psl_sign.rs
@@ -12,18 +12,18 @@ use crate::diesel::ExpressionMethods;
 use crate::error::Result;
 use crate::infra_cache::InfraCache;
 use crate::schema::ObjectType;
-use crate::tables::infra_layer_lpv_panel::dsl;
+use crate::tables::infra_layer_psl_sign::dsl;
 
-pub struct LPVPanelLayer;
+pub struct PSLSignLayer;
 
 #[async_trait]
-impl GeneratedData for LPVPanelLayer {
+impl GeneratedData for PSLSignLayer {
     fn table_name() -> &'static str {
-        "infra_layer_lpv_panel"
+        "infra_layer_psl_sign"
     }
 
     async fn generate(conn: &mut PgConnection, infra: i64, _cache: &InfraCache) -> Result<()> {
-        sql_query(include_str!("sql/generate_lpv_panel_layer.sql"))
+        sql_query(include_str!("sql/generate_psl_sign_layer.sql"))
             .bind::<BigInt, _>(infra)
             .execute(conn)
             .await?;
@@ -47,7 +47,7 @@ impl GeneratedData for LPVPanelLayer {
                 .iter()
                 .chain(involved_objects.updated.iter());
             delete(
-                dsl::infra_layer_lpv_panel
+                dsl::infra_layer_psl_sign
                     .filter(dsl::infra_id.eq(infra))
                     .filter(dsl::obj_id.eq_any(objs)),
             )
@@ -57,7 +57,7 @@ impl GeneratedData for LPVPanelLayer {
 
         // Insert involved elements
         if !involved_objects.updated.is_empty() {
-            sql_query(include_str!("sql/insert_lpv_panel_layer.sql"))
+            sql_query(include_str!("sql/insert_psl_sign_layer.sql"))
                 .bind::<BigInt, _>(infra)
                 .bind::<Array<Text>, _>(involved_objects.updated.into_iter().collect::<Vec<_>>())
                 .execute(conn)
diff --git a/editoast/src/generated_data/sql/generate_lpv_panel_layer.sql b/editoast/src/generated_data/sql/generate_psl_sign_layer.sql
similarity index 54%
rename from editoast/src/generated_data/sql/generate_lpv_panel_layer.sql
rename to editoast/src/generated_data/sql/generate_psl_sign_layer.sql
index 4aad7a57c54..3e31915fd80 100644
--- a/editoast/src/generated_data/sql/generate_lpv_panel_layer.sql
+++ b/editoast/src/generated_data/sql/generate_psl_sign_layer.sql
@@ -1,40 +1,40 @@
-WITH panels AS (
+WITH signs AS (
     SELECT obj_id AS sc_id,
         (
-            jsonb_array_elements(data->'extensions'->'lpv_sncf'->'announcement')->'position'
+            jsonb_array_elements(data->'extensions'->'psl_sncf'->'announcement')->'position'
         )::float AS position,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'announcement')->>'track' AS track_id,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'announcement') AS data
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'announcement')->>'track' AS track_id,
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'announcement') AS data
     FROM infra_object_speed_section
     WHERE infra_id = $1
-        AND infra_object_speed_section.data @? '$.extensions.lpv_sncf.z'
+        AND infra_object_speed_section.data @? '$.extensions.psl_sncf.z'
     UNION
     SELECT obj_id AS sc_id,
         (
-            jsonb_array_elements(data->'extensions'->'lpv_sncf'->'r')->'position'
+            jsonb_array_elements(data->'extensions'->'psl_sncf'->'r')->'position'
         )::float AS position,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'r')->>'track' AS track_id,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'r') AS data
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'r')->>'track' AS track_id,
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'r') AS data
     FROM infra_object_speed_section
     WHERE infra_id = $1
-        AND infra_object_speed_section.data @? '$.extensions.lpv_sncf.z'
+        AND infra_object_speed_section.data @? '$.extensions.psl_sncf.z'
     UNION
     SELECT obj_id AS sc_id,
-        (data->'extensions'->'lpv_sncf'->'z'->'position')::float AS position,
-        data->'extensions'->'lpv_sncf'->'z'->>'track' AS track_id,
-        data->'extensions'->'lpv_sncf'->'z' AS data
+        (data->'extensions'->'psl_sncf'->'z'->'position')::float AS position,
+        data->'extensions'->'psl_sncf'->'z'->>'track' AS track_id,
+        data->'extensions'->'psl_sncf'->'z' AS data
     FROM infra_object_speed_section
     WHERE infra_id = $1
-        AND infra_object_speed_section.data @? '$.extensions.lpv_sncf.z'
+        AND infra_object_speed_section.data @? '$.extensions.psl_sncf.z'
 ),
 collect AS (
-    SELECT panels.sc_id,
-        panels.data,
+    SELECT signs.sc_id,
+        signs.data,
         ST_LineInterpolatePoint(
             tracks_layer.geographic,
             LEAST(
                 GREATEST(
-                    panels.position / (tracks.data->'length')::float,
+                    signs.position / (tracks.data->'length')::float,
                     0.
                 ),
                 1.
@@ -44,19 +44,19 @@ collect AS (
             tracks_layer.schematic,
             LEAST(
                 GREATEST(
-                    panels.position / (tracks.data->'length')::float,
+                    signs.position / (tracks.data->'length')::float,
                     0.
                 ),
                 1.
             )
         ) AS sch
-    FROM panels
-        INNER JOIN infra_object_track_section AS tracks ON tracks.obj_id = panels.track_id
+    FROM signs
+        INNER JOIN infra_object_track_section AS tracks ON tracks.obj_id = signs.track_id
         AND tracks.infra_id = $1
         INNER JOIN infra_layer_track_section AS tracks_layer ON tracks.obj_id = tracks_layer.obj_id
         AND tracks.infra_id = tracks_layer.infra_id
 )
-INSERT INTO infra_layer_lpv_panel (obj_id, infra_id, geographic, schematic, data)
+INSERT INTO infra_layer_psl_sign (obj_id, infra_id, geographic, schematic, data)
 SELECT sc_id,
     $1,
     geo,
diff --git a/editoast/src/generated_data/sql/insert_lpv_panel_layer.sql b/editoast/src/generated_data/sql/insert_psl_sign_layer.sql
similarity index 55%
rename from editoast/src/generated_data/sql/insert_lpv_panel_layer.sql
rename to editoast/src/generated_data/sql/insert_psl_sign_layer.sql
index df789a229fb..c0e0653b6e0 100644
--- a/editoast/src/generated_data/sql/insert_lpv_panel_layer.sql
+++ b/editoast/src/generated_data/sql/insert_psl_sign_layer.sql
@@ -1,43 +1,43 @@
-WITH panels AS (
+WITH signs AS (
     SELECT obj_id AS sc_id,
         (
-            jsonb_array_elements(data->'extensions'->'lpv_sncf'->'announcement')->'position'
+            jsonb_array_elements(data->'extensions'->'psl_sncf'->'announcement')->'position'
         )::float AS position,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'announcement')->>'track' AS track_id,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'announcement') AS data
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'announcement')->>'track' AS track_id,
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'announcement') AS data
     FROM infra_object_speed_section
     WHERE infra_id = $1
         AND obj_id = ANY($2)
-        AND infra_object_speed_section.data @? '$.extensions.lpv_sncf.z'
+        AND infra_object_speed_section.data @? '$.extensions.psl_sncf.z'
     UNION
     SELECT obj_id AS sc_id,
         (
-            jsonb_array_elements(data->'extensions'->'lpv_sncf'->'r')->'position'
+            jsonb_array_elements(data->'extensions'->'psl_sncf'->'r')->'position'
         )::float AS position,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'r')->>'track' AS track_id,
-        jsonb_array_elements(data->'extensions'->'lpv_sncf'->'r') AS data
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'r')->>'track' AS track_id,
+        jsonb_array_elements(data->'extensions'->'psl_sncf'->'r') AS data
     FROM infra_object_speed_section
     WHERE infra_id = $1
         AND obj_id = ANY($2)
-        AND infra_object_speed_section.data @? '$.extensions.lpv_sncf.z'
+        AND infra_object_speed_section.data @? '$.extensions.psl_sncf.z'
     UNION
     SELECT obj_id AS sc_id,
-        (data->'extensions'->'lpv_sncf'->'z'->'position')::float AS position,
-        data->'extensions'->'lpv_sncf'->'z'->>'track' AS track_id,
-        data->'extensions'->'lpv_sncf'->'z' AS data
+        (data->'extensions'->'psl_sncf'->'z'->'position')::float AS position,
+        data->'extensions'->'psl_sncf'->'z'->>'track' AS track_id,
+        data->'extensions'->'psl_sncf'->'z' AS data
     FROM infra_object_speed_section
     WHERE infra_id = $1
         AND obj_id = ANY($2)
-        AND infra_object_speed_section.data @? '$.extensions.lpv_sncf.z'
+        AND infra_object_speed_section.data @? '$.extensions.psl_sncf.z'
 ),
 collect AS (
-    SELECT panels.sc_id,
-        panels.data,
+    SELECT signs.sc_id,
+        signs.data,
         ST_LineInterpolatePoint(
             tracks_layer.geographic,
             LEAST(
                 GREATEST(
-                    panels.position / (tracks.data->'length')::float,
+                    signs.position / (tracks.data->'length')::float,
                     0.
                 ),
                 1.
@@ -47,19 +47,19 @@ collect AS (
             tracks_layer.schematic,
             LEAST(
                 GREATEST(
-                    panels.position / (tracks.data->'length')::float,
+                    signs.position / (tracks.data->'length')::float,
                     0.
                 ),
                 1.
             )
         ) AS sch
-    FROM panels
-        INNER JOIN infra_object_track_section AS tracks ON tracks.obj_id = panels.track_id
+    FROM signs
+        INNER JOIN infra_object_track_section AS tracks ON tracks.obj_id = signs.track_id
         AND tracks.infra_id = $1
         INNER JOIN infra_layer_track_section AS tracks_layer ON tracks.obj_id = tracks_layer.obj_id
         AND tracks.infra_id = tracks_layer.infra_id
 )
-INSERT INTO infra_layer_lpv_panel (obj_id, infra_id, geographic, schematic, data)
+INSERT INTO infra_layer_psl_sign (obj_id, infra_id, geographic, schematic, data)
 SELECT sc_id,
     $1,
     geo,
diff --git a/editoast/src/models/infra.rs b/editoast/src/models/infra.rs
index 7ff42cb7782..b9676e77603 100644
--- a/editoast/src/models/infra.rs
+++ b/editoast/src/models/infra.rs
@@ -23,7 +23,7 @@ use log::{debug, error};
 use serde::{Deserialize, Serialize};
 use uuid::Uuid;
 
-pub const RAILJSON_VERSION: &str = "3.4.1";
+pub const RAILJSON_VERSION: &str = "3.4.2";
 pub const INFRA_VERSION: &str = "0";
 
 #[derive(
diff --git a/editoast/src/schema/mod.rs b/editoast/src/schema/mod.rs
index 131124dda6b..c8a43656913 100644
--- a/editoast/src/schema/mod.rs
+++ b/editoast/src/schema/mod.rs
@@ -331,7 +331,7 @@ pub enum Side {
 #[derive(Debug, Derivative, Clone, Deserialize, Serialize, PartialEq)]
 #[derivative(Default)]
 #[serde(deny_unknown_fields)]
-pub struct Panel {
+pub struct Sign {
     #[derivative(Default(value = r#""InvalidRef".into()"#))]
     pub track: Identifier,
     pub position: f64,
@@ -339,7 +339,7 @@ pub struct Panel {
     pub angle_sch: f64,
     pub side: Side,
     #[serde(rename = "type")]
-    pub panel_type: NonBlankString,
+    pub sign_type: NonBlankString,
     pub value: Option<NonBlankString>,
 }
 
diff --git a/editoast/src/schema/speed_section.rs b/editoast/src/schema/speed_section.rs
index bf80360207b..4c7092038da 100644
--- a/editoast/src/schema/speed_section.rs
+++ b/editoast/src/schema/speed_section.rs
@@ -5,7 +5,7 @@ use super::utils::Identifier;
 use super::utils::NonBlankString;
 use super::OSRDTyped;
 use super::ObjectType;
-use super::Panel;
+use super::Sign;
 
 use crate::infra_cache::Cache;
 use crate::infra_cache::ObjectCache;
@@ -33,15 +33,15 @@ pub struct SpeedSection {
 #[derive(Debug, Default, Clone, Deserialize, Serialize, PartialEq)]
 #[serde(deny_unknown_fields)]
 pub struct SpeedSectionExtensions {
-    pub lpv_sncf: Option<SpeedSectionLpvSncfExtension>,
+    pub psl_sncf: Option<SpeedSectionPslSncfExtension>,
 }
 
 #[derive(Debug, Default, Clone, Deserialize, Serialize, PartialEq)]
 #[serde(deny_unknown_fields)]
-pub struct SpeedSectionLpvSncfExtension {
-    announcement: Vec<Panel>,
-    z: Panel,
-    r: Vec<Panel>,
+pub struct SpeedSectionPslSncfExtension {
+    announcement: Vec<Sign>,
+    z: Sign,
+    r: Vec<Sign>,
 }
 
 impl OSRDTyped for SpeedSection {
@@ -59,10 +59,10 @@ impl OSRDIdentified for SpeedSection {
 impl Cache for SpeedSection {
     fn get_track_referenced_id(&self) -> Vec<&String> {
         let mut res: Vec<_> = self.track_ranges.iter().map(|tr| &*tr.track).collect();
-        if let Some(lpv) = &self.extensions.lpv_sncf {
-            res.extend(lpv.announcement.iter().map(|panel| &*panel.track));
-            res.extend(lpv.r.iter().map(|panel| &*panel.track));
-            res.push(&*lpv.z.track);
+        if let Some(psl) = &self.extensions.psl_sncf {
+            res.extend(psl.announcement.iter().map(|sign| &*sign.track));
+            res.extend(psl.r.iter().map(|sign| &*sign.track));
+            res.push(&*psl.z.track);
         }
         res
     }
diff --git a/editoast/src/tables.rs b/editoast/src/tables.rs
index e35487e5cca..4bc71500464 100644
--- a/editoast/src/tables.rs
+++ b/editoast/src/tables.rs
@@ -104,13 +104,12 @@ diesel::table! {
     use diesel::sql_types::*;
     use postgis_diesel::sql_types::*;
 
-    infra_layer_lpv_panel (id) {
+    infra_layer_neutral_section (id) {
         id -> Int8,
         #[max_length = 255]
         obj_id -> Varchar,
         geographic -> Geometry,
         schematic -> Geometry,
-        data -> Jsonb,
         infra_id -> Int8,
     }
 }
@@ -119,7 +118,7 @@ diesel::table! {
     use diesel::sql_types::*;
     use postgis_diesel::sql_types::*;
 
-    infra_layer_neutral_section (id) {
+    infra_layer_operational_point (id) {
         id -> Int8,
         #[max_length = 255]
         obj_id -> Varchar,
@@ -133,12 +132,13 @@ diesel::table! {
     use diesel::sql_types::*;
     use postgis_diesel::sql_types::*;
 
-    infra_layer_operational_point (id) {
+    infra_layer_psl_sign (id) {
         id -> Int8,
         #[max_length = 255]
         obj_id -> Varchar,
         geographic -> Geometry,
         schematic -> Geometry,
+        data -> Jsonb,
         infra_id -> Int8,
     }
 }
@@ -663,9 +663,9 @@ diesel::joinable!(infra_layer_buffer_stop -> infra (infra_id));
 diesel::joinable!(infra_layer_catenary -> infra (infra_id));
 diesel::joinable!(infra_layer_detector -> infra (infra_id));
 diesel::joinable!(infra_layer_error -> infra (infra_id));
-diesel::joinable!(infra_layer_lpv_panel -> infra (infra_id));
 diesel::joinable!(infra_layer_neutral_section -> infra (infra_id));
 diesel::joinable!(infra_layer_operational_point -> infra (infra_id));
+diesel::joinable!(infra_layer_psl_sign -> infra (infra_id));
 diesel::joinable!(infra_layer_signal -> infra (infra_id));
 diesel::joinable!(infra_layer_speed_section -> infra (infra_id));
 diesel::joinable!(infra_layer_switch -> infra (infra_id));
@@ -712,9 +712,9 @@ diesel::allow_tables_to_appear_in_same_query!(
     infra_layer_catenary,
     infra_layer_detector,
     infra_layer_error,
-    infra_layer_lpv_panel,
     infra_layer_neutral_section,
     infra_layer_operational_point,
+    infra_layer_psl_sign,
     infra_layer_signal,
     infra_layer_speed_section,
     infra_layer_switch,
diff --git a/editoast/src/tests/small_infra/small_infra.json b/editoast/src/tests/small_infra/small_infra.json
index d5fb2d493e8..417bcaaba46 100644
--- a/editoast/src/tests/small_infra/small_infra.json
+++ b/editoast/src/tests/small_infra/small_infra.json
@@ -1,5 +1,5 @@
 {
-    "version": "3.4.1",
+    "version": "3.4.2",
     "operational_points": [
         {
             "id": "South_West_station",
diff --git a/editoast/src/views/layers/mvt_utils.rs b/editoast/src/views/layers/mvt_utils.rs
index 79499bb3e1b..a806f1b829f 100644
--- a/editoast/src/views/layers/mvt_utils.rs
+++ b/editoast/src/views/layers/mvt_utils.rs
@@ -216,7 +216,7 @@ mod tests {
         FROM matches
         INNER JOIN infra_layer_speed_section layer on matches.id = layer.id
         inner join infra_object_speed_section speed_section on speed_section.obj_id = layer.obj_id and speed_section.infra_id = layer.infra_id
-        WHERE geo_json is not NULL AND (not (speed_section.data @? '$.extensions.lpv_sncf.z'))
+        WHERE geo_json is not NULL AND (not (speed_section.data @? '$.extensions.psl_sncf.z'))
         "
         ];
         for (i, layer_name) in ["track_sections", "speed_sections"].iter().enumerate() {
@@ -236,7 +236,7 @@ mod tests {
           data: json!({
             "id": "a",
             "extensions": {
-              "lpv_sncf": null
+              "psl_sncf": null
             },
             "speed_limit": null,
             "track_ranges": [
@@ -254,7 +254,7 @@ mod tests {
             data: json!({
               "id": "b",
               "extensions": {
-                "lpv_sncf": null
+                "psl_sncf": null
               },
               "speed_limit": null,
               "track_ranges": [
diff --git a/front/src/reducers/osrdconf/infra_schema.json b/front/src/reducers/osrdconf/infra_schema.json
index c6dc6b6e9bf..982cd985380 100644
--- a/front/src/reducers/osrdconf/infra_schema.json
+++ b/front/src/reducers/osrdconf/infra_schema.json
@@ -1182,7 +1182,7 @@
                 "lpv_sncf": {
                     "allOf": [
                         {
-                            "$ref": "#/$defs/SpeedSectionLpvSncfExtension"
+                            "$ref": "#/$defs/SpeedSectionPslSncfExtension"
                         }
                     ],
                     "default": null
@@ -1191,7 +1191,7 @@
             "title": "SpeedSectionExtensions",
             "type": "object"
         },
-        "SpeedSectionLpvSncfExtension": {
+        "SpeedSectionPslSncfExtension": {
             "properties": {
                 "announcement": {
                     "description": "Precise the value(s) of the speed",
@@ -1223,7 +1223,7 @@
                 "z",
                 "r"
             ],
-            "title": "SpeedSectionLpvSncfExtension",
+            "title": "SpeedSectionPslSncfExtension",
             "type": "object"
         },
         "Switch": {
@@ -1746,8 +1746,8 @@
             "type": "array"
         },
         "version": {
-            "const": "3.4.1",
-            "default": "3.4.1",
+            "const": "3.4.2",
+            "default": "3.4.2",
             "description": "Version of the schema",
             "title": "Version"
         }
diff --git a/python/osrd_schemas/osrd_schemas/infra.py b/python/osrd_schemas/osrd_schemas/infra.py
index 026d3242358..d25c610cc95 100644
--- a/python/osrd_schemas/osrd_schemas/infra.py
+++ b/python/osrd_schemas/osrd_schemas/infra.py
@@ -8,7 +8,7 @@
 
 ALL_OBJECT_TYPES = []
 
-RAILJSON_INFRA_VERSION_TYPE = Literal["3.4.1"]
+RAILJSON_INFRA_VERSION_TYPE = Literal["3.4.2"]
 RAILJSON_INFRA_VERSION = get_args(RAILJSON_INFRA_VERSION_TYPE)[0]
 
 # Traits
@@ -423,17 +423,17 @@ def ref(self):
         return DetectorReference(type="Detector", id=self.id)
 
 
-class Panel(TrackLocationTrait):
-    """This class is used to define panels.
+class Sign(TrackLocationTrait):
+    """This class is used to define signs.
     This is a physical, punctual, cosmetic object.
     """
 
     angle_geo: float = Field(0, description="Geographic angle in degrees")
     angle_sch: float = Field(0, description="Schematic angle in degrees")
-    side: Side = Field(Side.CENTER, description="Side of the panel on the track")
-    type: NonBlankStr = Field(description="Precise the type of the panel")
+    side: Side = Field(Side.CENTER, description="Side of the sign on the track")
+    type: NonBlankStr = Field(description="Precise the type of the sign")
     value: Optional[NonBlankStr] = Field(
-        description="If the panel is an announcement, precise the value(s)", default=None
+        description="If the sign is an announcement, precise the value(s)", default=None
     )
 
 
@@ -574,11 +574,11 @@ class SignalSncfExtension(BaseModel):
     value: str
 
 
-@register_extension(object=SpeedSection, name="lpv_sncf")
-class SpeedSectionLpvSncfExtension(BaseModel):
-    announcement: List[Panel] = Field(description="Precise the value(s) of the speed")
-    z: Panel = Field(description="Beginning of the lpv speed section")
-    r: List[Panel] = Field(description="End of the lpv speed section")
+@register_extension(object=SpeedSection, name="psl_sncf")
+class SpeedSectionPslSncfExtension(BaseModel):
+    announcement: List[Sign] = Field(description="Precise the value(s) of the speed")
+    z: Sign = Field(description="Beginning of the psl speed section")
+    r: List[Sign] = Field(description="End of the psl speed section")
 
 
 # Rebuild all classes to integrate extensions in schema
diff --git a/python/osrd_schemas/pyproject.toml b/python/osrd_schemas/pyproject.toml
index 5150a5408b0..ea42e469376 100644
--- a/python/osrd_schemas/pyproject.toml
+++ b/python/osrd_schemas/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "osrd_schemas"
-version = "0.6.2"
+version = "0.7.0"
 description = ""
 authors = ["OSRD <contact@osrd.fr>"]
 
diff --git a/python/railjson_generator/poetry.lock b/python/railjson_generator/poetry.lock
index 874f4ec2088..eff43410102 100644
--- a/python/railjson_generator/poetry.lock
+++ b/python/railjson_generator/poetry.lock
@@ -147,7 +147,7 @@ files = [
 
 [[package]]
 name = "osrd-schemas"
-version = "0.6.2"
+version = "0.7.0"
 description = ""
 optional = false
 python-versions = ">=3.9,<3.12"
diff --git a/python/railjson_generator/pyproject.toml b/python/railjson_generator/pyproject.toml
index 928814dd942..29bb670f279 100644
--- a/python/railjson_generator/pyproject.toml
+++ b/python/railjson_generator/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "railjson_generator"
-version = "0.2.2"
+version = "0.2.3"
 description = ""
 authors = ["OSRD <contact@osrd.fr>"]
 
diff --git a/python/railjson_generator/railjson_generator/schema/infra/infra.py b/python/railjson_generator/railjson_generator/schema/infra/infra.py
index c6aa95a8f06..22ea4503355 100644
--- a/python/railjson_generator/railjson_generator/schema/infra/infra.py
+++ b/python/railjson_generator/railjson_generator/schema/infra/infra.py
@@ -27,7 +27,7 @@ class Infra:
     catenaries: List[Catenary] = field(default_factory=list)
     neutral_sections: List[NeutralSection] = field(default_factory=list)
 
-    VERSION = "3.4.1"
+    VERSION = "3.4.2"
 
     def add_route(self, *args, **kwargs):
         self.routes.append(Route(*args, **kwargs))
diff --git a/tests/poetry.lock b/tests/poetry.lock
index bce00be3365..674854c7d17 100644
--- a/tests/poetry.lock
+++ b/tests/poetry.lock
@@ -278,7 +278,7 @@ files = [
 
 [[package]]
 name = "osrd-schemas"
-version = "0.6.1"
+version = "0.7.0"
 description = ""
 optional = false
 python-versions = ">=3.9,<3.12"
@@ -538,7 +538,7 @@ testing = ["argcomplete", "attrs (>=19.2.0)", "hypothesis (>=3.56)", "mock", "no
 
 [[package]]
 name = "railjson-generator"
-version = "0.2.2"
+version = "0.2.3"
 description = ""
 optional = false
 python-versions = ">=3.9,<3.12"