2. language diversity
Another challenge is that pedestrians from locals and visitors speak different languages. According to Makkah Urban Observatory, to cover 90% of the system users’ languages, the system should be using 6 languages: Arabic, Farsi, Urdu all in Arabic script, and English, French and Turkish using Latin script. With the interactive screens it became doable!
Sakkal's AwanZaman Arabic typeface, and Kohinoor for Latin script, were used after mock-up testing with many typefaces!