Differences

This shows you the differences between two versions of the page.

--- en:safeav:hmc:lang [2025/10/20 22:23] – raivo.sell
+++ en:safeav:hmc:lang [2025/10/20 22:25] (current) – [7.3 Language of Driving Concepts] raivo.sell
@@ Line 1: / Line 1: @@
+====== Language of Driving Concepts ======
+The Language of Driving (LoD) describes the implicit and explicit signals that allow autonomous vehicles and humans to understand each other in mixed traffic [1–3].
+===== Semantics and Pragmatics of Driving =====
+Driving behavior can be analyzed as a layered communication system:
+  * **Phonetics:** visible cues such as lights or motion rhythm.
+  * **Semantics:** the meaning of those cues (e.g., yield, proceed).
+  * **Pragmatics:** how meaning changes with context and environment.
+An autonomous vehicle must infer human intent and simultaneously display legible intent of its own [2].
+===== Cultural Adaptation and Universality =====
+Driving “languages” vary globally; hence interfaces must maintain universal meaning while allowing local adaptation [1].
+Behavior should be recognizable but not anthropomorphic, preserving clarity across cultures [3].
+===== LoD Implementation Examples =====
+Field experiments using light-based cues have shown that simple color and motion patterns effectively communicate awareness and yielding.
+Participants reported improved understanding when signals were consistent and redundant across modalities [2].
+{{:en:safeav:hmc:iseauto_crossing_scenario.jpg?600| Typical pedestrian crossing scenario using visual LoD cues. }}
+===== Future Development =====
+Formalizing LoD as a measurable framework is essential for verification, standardization, and interoperability of automated behavior [3].
+----
+**References:**
+[1] Razdan, R. et al. (2020). *Unsettled Topics Concerning Human and Autonomous Vehicle Interaction.* SAE EDGE Research Report EPR2020025.
+[2] Kalda, K., Sell, R., Soe, R.-M. (2021). *Use Case of Autonomous Vehicle Shuttle and Passenger Acceptance.* Proc. Estonian Academy of Sciences, 70 (4).
+[3] Kalda, K., Pizzagalli, S.-L., Soe, R.-M., Sell, R., Bellone, M. (2022). *Language of Driving for Autonomous Vehicles.* *Applied Sciences*, 12 (11).