diff --git a/sncfgtfs/locale/fr/LC_MESSAGES/django.po b/sncfgtfs/locale/fr/LC_MESSAGES/django.po
index 1172930..f8a95b7 100644
--- a/sncfgtfs/locale/fr/LC_MESSAGES/django.po
+++ b/sncfgtfs/locale/fr/LC_MESSAGES/django.po
@@ -2,7 +2,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: 1.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2024-01-26 00:40+0100\n"
+"POT-Creation-Date: 2024-01-26 21:12+0100\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: Emmy D'Anello <ynerant@emy.lu>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -40,7 +40,7 @@ msgstr "Pas d'information"
 msgid "Possible"
 msgstr "Possible"
 
-#: sncfgtfs/models.py:16
+#: sncfgtfs/models.py:16 sncfgtfs/models.py:46
 msgid "Not possible"
 msgstr "Impossible"
 
@@ -100,334 +100,346 @@ msgstr "Vers l'extérieur"
 msgid "Inbound"
 msgstr "Vers l'intérieur"
 
-#: sncfgtfs/models.py:46 sncfgtfs/models.py:170
+#: sncfgtfs/models.py:43
+msgid "Recommended"
+msgstr "Recommandé"
+
+#: sncfgtfs/models.py:44
+msgid "Timed"
+msgstr "Correspondance programmée"
+
+#: sncfgtfs/models.py:45
+msgid "Minimum time"
+msgstr "Temps de correspondance minimum requis"
+
+#: sncfgtfs/models.py:53 sncfgtfs/models.py:177
 msgid "Agency ID"
 msgstr "ID de l'agence"
 
-#: sncfgtfs/models.py:52
+#: sncfgtfs/models.py:59
 msgid "Agency name"
 msgstr "Nom de l'agence"
 
-#: sncfgtfs/models.py:56
+#: sncfgtfs/models.py:63
 msgid "Agency URL"
 msgstr "URL de l'agence"
 
-#: sncfgtfs/models.py:61
+#: sncfgtfs/models.py:68
 msgid "Agency timezone"
 msgstr "Fuseau horaire de l'agence"
 
-#: sncfgtfs/models.py:66
+#: sncfgtfs/models.py:73
 msgid "Agency language"
 msgstr "Langue de l'agence"
 
-#: sncfgtfs/models.py:71
+#: sncfgtfs/models.py:78
 msgid "Agency"
 msgstr "Agence"
 
-#: sncfgtfs/models.py:72
+#: sncfgtfs/models.py:79
 msgid "Agencies"
 msgstr "Agences"
 
-#: sncfgtfs/models.py:79 sncfgtfs/models.py:300
+#: sncfgtfs/models.py:86 sncfgtfs/models.py:307
 msgid "Stop ID"
 msgstr "ID de l'arrêt"
 
-#: sncfgtfs/models.py:84
+#: sncfgtfs/models.py:91
 msgid "Stop code"
 msgstr "Code de l'arrêt"
 
-#: sncfgtfs/models.py:90
+#: sncfgtfs/models.py:97
 msgid "Stop name"
 msgstr "Nom de l'arrêt"
 
-#: sncfgtfs/models.py:95
+#: sncfgtfs/models.py:102
 msgid "Stop description"
 msgstr "Description de l'arrêt"
 
-#: sncfgtfs/models.py:100
+#: sncfgtfs/models.py:107
 msgid "Stop longitude"
 msgstr "Longitude de l'arrêt"
 
-#: sncfgtfs/models.py:104
+#: sncfgtfs/models.py:111
 msgid "Stop latitude"
 msgstr "Latitude de l'arrêt"
 
-#: sncfgtfs/models.py:109
+#: sncfgtfs/models.py:116
 msgid "Zone ID"
 msgstr "ID de la zone"
 
-#: sncfgtfs/models.py:113
+#: sncfgtfs/models.py:120
 msgid "Stop URL"
 msgstr "URL de l'arrêt"
 
-#: sncfgtfs/models.py:118
+#: sncfgtfs/models.py:125
 msgid "Location type"
 msgstr "Type de localisation"
 
-#: sncfgtfs/models.py:127
+#: sncfgtfs/models.py:134
 msgid "Parent station"
 msgstr "Gare parente"
 
-#: sncfgtfs/models.py:133
+#: sncfgtfs/models.py:140
 msgid "Stop timezone"
 msgstr "Fuseau horaire de l'arrêt"
 
-#: sncfgtfs/models.py:139
+#: sncfgtfs/models.py:146
 msgid "Level ID"
 msgstr "ID du niveau"
 
-#: sncfgtfs/models.py:144
+#: sncfgtfs/models.py:151
 msgid "Wheelchair boarding"
 msgstr "Embarquement en fauteuil roulant"
 
-#: sncfgtfs/models.py:152
+#: sncfgtfs/models.py:159
 msgid "Platform code"
 msgstr "Code du quai"
 
-#: sncfgtfs/models.py:156
+#: sncfgtfs/models.py:163
 msgid "Stop"
 msgstr "Arrêt"
 
-#: sncfgtfs/models.py:157
+#: sncfgtfs/models.py:164
 msgid "Stops"
 msgstr "Arrêts"
 
-#: sncfgtfs/models.py:164 sncfgtfs/models.py:226
+#: sncfgtfs/models.py:171 sncfgtfs/models.py:233
 msgid "Route ID"
 msgstr "ID de la ligne"
 
-#: sncfgtfs/models.py:175
+#: sncfgtfs/models.py:182
 msgid "Route short name"
 msgstr "Nom court de la ligne"
 
-#: sncfgtfs/models.py:180
+#: sncfgtfs/models.py:187
 msgid "Route long name"
 msgstr "Nom long de la ligne"
 
-#: sncfgtfs/models.py:185
+#: sncfgtfs/models.py:192
 msgid "Route description"
 msgstr "Description de la ligne"
 
-#: sncfgtfs/models.py:190
+#: sncfgtfs/models.py:197
 msgid "Route type"
 msgstr "Type de ligne"
 
-#: sncfgtfs/models.py:195
+#: sncfgtfs/models.py:202
 msgid "Route URL"
 msgstr "URL de la ligne"
 
-#: sncfgtfs/models.py:201
+#: sncfgtfs/models.py:208
 msgid "Route color"
 msgstr "Couleur de la ligne"
 
-#: sncfgtfs/models.py:207
+#: sncfgtfs/models.py:214
 msgid "Route text color"
 msgstr "Couleur du texte de la ligne"
 
-#: sncfgtfs/models.py:212
+#: sncfgtfs/models.py:219
 msgid "Route"
 msgstr "Ligne"
 
-#: sncfgtfs/models.py:213
+#: sncfgtfs/models.py:220
 msgid "Routes"
 msgstr "Lignes"
 
-#: sncfgtfs/models.py:220 sncfgtfs/models.py:286
+#: sncfgtfs/models.py:227 sncfgtfs/models.py:293
 msgid "Trip ID"
 msgstr "ID du trajet"
 
-#: sncfgtfs/models.py:231 sncfgtfs/models.py:342 sncfgtfs/models.py:390
+#: sncfgtfs/models.py:238 sncfgtfs/models.py:349 sncfgtfs/models.py:397
 msgid "Service ID"
 msgstr "ID du service"
 
-#: sncfgtfs/models.py:236
+#: sncfgtfs/models.py:243
 msgid "Trip headsign"
 msgstr "Destination du trajet"
 
-#: sncfgtfs/models.py:242
+#: sncfgtfs/models.py:249
 msgid "Trip short name"
 msgstr "Nom court du trajet"
 
-#: sncfgtfs/models.py:247
+#: sncfgtfs/models.py:254
 msgid "Direction"
 msgstr "Direction"
 
-#: sncfgtfs/models.py:254
+#: sncfgtfs/models.py:261
 msgid "Block ID"
 msgstr "ID du bloc"
 
-#: sncfgtfs/models.py:260
+#: sncfgtfs/models.py:267
 msgid "Shape ID"
 msgstr "ID de la forme"
 
-#: sncfgtfs/models.py:265
+#: sncfgtfs/models.py:272
 msgid "Wheelchair accessible"
 msgstr "Accessible en fauteuil roulant"
 
-#: sncfgtfs/models.py:272
+#: sncfgtfs/models.py:279
 msgid "Bikes allowed"
 msgstr "Vélos autorisés"
 
-#: sncfgtfs/models.py:278
+#: sncfgtfs/models.py:285
 msgid "Trip"
 msgstr "Trajet"
 
-#: sncfgtfs/models.py:279
+#: sncfgtfs/models.py:286
 msgid "Trips"
 msgstr "Trajets"
 
-#: sncfgtfs/models.py:290
+#: sncfgtfs/models.py:297
 msgid "Arrival time"
 msgstr "Heure d'arrivée"
 
-#: sncfgtfs/models.py:294
+#: sncfgtfs/models.py:301
 msgid "Departure time"
 msgstr "Heure de départ"
 
-#: sncfgtfs/models.py:304
+#: sncfgtfs/models.py:311
 msgid "Stop sequence"
 msgstr "Séquence de l'arrêt"
 
-#: sncfgtfs/models.py:309
+#: sncfgtfs/models.py:316
 msgid "Stop headsign"
 msgstr "Destination de l'arrêt"
 
-#: sncfgtfs/models.py:314
+#: sncfgtfs/models.py:321
 msgid "Pickup type"
 msgstr "Type de prise en charge"
 
-#: sncfgtfs/models.py:321
+#: sncfgtfs/models.py:328
 msgid "Drop off type"
 msgstr "Type de dépose"
 
-#: sncfgtfs/models.py:328
+#: sncfgtfs/models.py:335
 msgid "Timepoint"
 msgstr "Ponctualité"
 
-#: sncfgtfs/models.py:334
+#: sncfgtfs/models.py:341
 msgid "Stop time"
 msgstr "Heure d'arrêt"
 
-#: sncfgtfs/models.py:335
+#: sncfgtfs/models.py:342
 msgid "Stop times"
 msgstr "Heures d'arrêt"
 
-#: sncfgtfs/models.py:346
+#: sncfgtfs/models.py:353
 msgid "Monday"
 msgstr "Lundi"
 
-#: sncfgtfs/models.py:350
+#: sncfgtfs/models.py:357
 msgid "Tuesday"
 msgstr "Mardi"
 
-#: sncfgtfs/models.py:354
+#: sncfgtfs/models.py:361
 msgid "Wednesday"
 msgstr "Mercredi"
 
-#: sncfgtfs/models.py:358
+#: sncfgtfs/models.py:365
 msgid "Thursday"
 msgstr "Jeudi"
 
-#: sncfgtfs/models.py:362
+#: sncfgtfs/models.py:369
 msgid "Friday"
 msgstr "Vendredi"
 
-#: sncfgtfs/models.py:366
+#: sncfgtfs/models.py:373
 msgid "Saturday"
 msgstr "Samedi"
 
-#: sncfgtfs/models.py:370
+#: sncfgtfs/models.py:377
 msgid "Sunday"
 msgstr "Dimanche"
 
-#: sncfgtfs/models.py:374
+#: sncfgtfs/models.py:381
 msgid "Start date"
 msgstr "Date de début"
 
-#: sncfgtfs/models.py:378
+#: sncfgtfs/models.py:385
 msgid "End date"
 msgstr "Date de fin"
 
-#: sncfgtfs/models.py:382
+#: sncfgtfs/models.py:389
 msgid "Calendar"
 msgstr "Calendrier"
 
-#: sncfgtfs/models.py:383
+#: sncfgtfs/models.py:390
 msgid "Calendars"
 msgstr "Calendriers"
 
-#: sncfgtfs/models.py:394
+#: sncfgtfs/models.py:401
 msgid "Date"
 msgstr "Date"
 
-#: sncfgtfs/models.py:398
+#: sncfgtfs/models.py:405
 msgid "Exception type"
 msgstr "Type d'exception"
 
-#: sncfgtfs/models.py:402
+#: sncfgtfs/models.py:409
 msgid "Calendar date"
 msgstr "Date du calendrier"
 
-#: sncfgtfs/models.py:403
+#: sncfgtfs/models.py:410
 msgid "Calendar dates"
 msgstr "Dates du calendrier"
 
-#: sncfgtfs/models.py:410
+#: sncfgtfs/models.py:417
 msgid "From stop"
 msgstr "Depuis l'arrêt"
 
-#: sncfgtfs/models.py:417
+#: sncfgtfs/models.py:424
 msgid "To stop"
 msgstr "Jusqu'à l'arrêt"
 
-#: sncfgtfs/models.py:422
+#: sncfgtfs/models.py:429
 msgid "Transfer type"
 msgstr "Type de correspondance"
 
-#: sncfgtfs/models.py:426
+#: sncfgtfs/models.py:435
 msgid "Minimum transfer time"
 msgstr "Temps de correspondance minimum"
 
-#: sncfgtfs/models.py:431
+#: sncfgtfs/models.py:440
 msgid "Transfer"
 msgstr "Correspondance"
 
-#: sncfgtfs/models.py:432
+#: sncfgtfs/models.py:441
 msgid "Transfers"
 msgstr "Correspondances"
 
-#: sncfgtfs/models.py:438
+#: sncfgtfs/models.py:447
 msgid "Feed ID"
 msgstr "ID du flux"
 
-#: sncfgtfs/models.py:443
+#: sncfgtfs/models.py:452
 msgid "Feed publisher name"
 msgstr "Nom de l'éditeur du flux"
 
-#: sncfgtfs/models.py:447
+#: sncfgtfs/models.py:456
 msgid "Feed publisher URL"
 msgstr "URL de l'éditeur du flux"
 
-#: sncfgtfs/models.py:452
+#: sncfgtfs/models.py:461
 msgid "Feed language"
 msgstr "Langue du flux"
 
-#: sncfgtfs/models.py:456
+#: sncfgtfs/models.py:465
 msgid "Feed start date"
 msgstr "Date de début du flux"
 
-#: sncfgtfs/models.py:460
+#: sncfgtfs/models.py:469
 msgid "Feed end date"
 msgstr "Date de fin du flux"
 
-#: sncfgtfs/models.py:465
+#: sncfgtfs/models.py:474
 msgid "Feed version"
 msgstr "Version du flux"
 
-#: sncfgtfs/models.py:469
+#: sncfgtfs/models.py:478
 msgid "Feed info"
 msgstr "Information du flux"
 
-#: sncfgtfs/models.py:470
+#: sncfgtfs/models.py:479
 msgid "Feed infos"
 msgstr "Informations du flux"
diff --git a/sncfgtfs/migrations/0001_initial.py b/sncfgtfs/migrations/0001_initial.py
index f67baf3..4b51463 100644
--- a/sncfgtfs/migrations/0001_initial.py
+++ b/sncfgtfs/migrations/0001_initial.py
@@ -1,4 +1,4 @@
-# Generated by Django 5.0.1 on 2024-01-25 23:38
+# Generated by Django 5.0.1 on 2024-01-26 20:15
 
 import django.db.models.deletion
 from django.db import migrations, models
@@ -307,7 +307,19 @@ class Migration(migrations.Migration):
                         verbose_name="ID",
                     ),
                 ),
-                ("transfer_type", models.IntegerField(verbose_name="Transfer type")),
+                (
+                    "transfer_type",
+                    models.IntegerField(
+                        choices=[
+                            (0, "Recommended"),
+                            (1, "Timed"),
+                            (2, "Minimum time"),
+                            (3, "Not possible"),
+                        ],
+                        default=0,
+                        verbose_name="Transfer type",
+                    ),
+                ),
                 (
                     "min_transfer_time",
                     models.IntegerField(
@@ -320,7 +332,7 @@ class Migration(migrations.Migration):
                         on_delete=django.db.models.deletion.CASCADE,
                         related_name="transfers_from",
                         to="sncfgtfs.stop",
-                        verbose_name="From stop ID",
+                        verbose_name="From stop",
                     ),
                 ),
                 (
@@ -329,7 +341,7 @@ class Migration(migrations.Migration):
                         on_delete=django.db.models.deletion.CASCADE,
                         related_name="transfers_to",
                         to="sncfgtfs.stop",
-                        verbose_name="To stop ID",
+                        verbose_name="To stop",
                     ),
                 ),
             ],
diff --git a/sncfgtfs/models.py b/sncfgtfs/models.py
index c97bb2d..f0f009b 100644
--- a/sncfgtfs/models.py
+++ b/sncfgtfs/models.py
@@ -39,6 +39,13 @@ class Direction(models.IntegerChoices):
     INBOUND = 1, _("Inbound")
 
 
+class TransferType(models.IntegerChoices):
+    RECOMMENDED = 0, _("Recommended")
+    TIMED = 1, _("Timed")
+    MINIMUM_TIME = 2, _("Minimum time")
+    NOT_POSSIBLE = 3, _("Not possible")
+
+
 class Agency(models.Model):
     agency_id = models.CharField(
         max_length=255,
@@ -420,6 +427,8 @@ class Transfer(models.Model):
 
     transfer_type = models.IntegerField(
         verbose_name=_("Transfer type"),
+        choices=TransferType,
+        default=TransferType.RECOMMENDED,
     )
 
     min_transfer_time = models.IntegerField(