diff --git a/scratch/etienne/intersimple/gail/envs.py b/scratch/etienne/intersimple/gail/envs.py
new file mode 100644
index 0000000..7983312
--- /dev/null
+++ b/scratch/etienne/intersimple/gail/envs.py
@@ -0,0 +1,34 @@
+import gym
+import numpy as np
+from intersim.envs.intersimple import RandomLocation, RandomAgent, RewardVisualization, Reward, \
+    ImageObservationAnimation, RasterizedRoute, NObservations, RasterizedObservation, \
+    NormalizedActionSpace, ActionVisualization, InteractionSimulatorMarkerViz, ImitationCompat, Intersimple
+
+class RasterizedSpeed:
+
+    def __init__(self, max_speed=12, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        channels, height, width = self.observation_space.shape
+        self.observation_space = gym.spaces.Box(
+            low=0,
+            high=255,
+            shape=(channels+1, height, width),
+            dtype=np.uint8
+        )
+        self._max_speed = max_speed
+
+    def _simple_obs(self, intersim_obs, intersim_info):
+        img = super()._simple_obs(intersim_obs, intersim_info)
+
+        ego_speed = intersim_obs['state'][self._agent, 2]
+        scaled_speed = (255 * ego_speed) // self._max_speed
+        speed_layer = scaled_speed * np.ones_like(img[:1], dtype=np.uint8)
+        speed_layer = speed_layer.clamp(0, 255)
+        
+        obs = np.concatenate((img, speed_layer), axis=0)
+        return obs
+
+class NRasterizedRouteSpeedRandomAgentLocation(RandomLocation, RandomAgent, RewardVisualization,
+        Reward, ImageObservationAnimation, RasterizedRoute, RasterizedSpeed, NObservations, RasterizedObservation,
+        NormalizedActionSpace, ActionVisualization, InteractionSimulatorMarkerViz, ImitationCompat, Intersimple):
+    pass
\ No newline at end of file
diff --git a/scratch/etienne/intersimple/gail_options_image_random_location.py b/scratch/etienne/intersimple/gail_options_image_random_location.py
index 806a45d..511ecff 100644
--- a/scratch/etienne/intersimple/gail_options_image_random_location.py
+++ b/scratch/etienne/intersimple/gail_options_image_random_location.py
@@ -5,7 +5,7 @@ sys.path.append('../../../')
 from src.discriminator import CnnDiscriminatorFlatAction
 from imitation.algorithms import adversarial
 import stable_baselines3
-from intersim.envs import NRasterizedRouteSpeedRandomAgentLocation
+from gail.envs import NRasterizedRouteSpeedRandomAgentLocation
 import pickle
 import imitation.data.rollout as rollout
 import tempfile