Derech Igael Yadin was the name of a road connecting Wolfson to Holon Junction, it no longer exists for it was replaced by the Ayalon highway. Many maps label the part of Heinrich Heine between the off-ramp from the highway to Wolfson junction. ( example: https://www.google.com/maps/@32.0377811,34.7611169,793m/data=!3m1!1e3entry=ttu&g_ep=EgoyMDI1MDExMC4wIKXMDSoASAFQAw%3D%3D )