Complex sentence: The Ampang-Kuala Lumpur Elevated Highway (AKLEH) uses open toll collection systems, and since 2015 all toll transactions at the highway's sole toll plaza are conducted electronically via Touch' n Go cards or SmartTAGs.
Split into simpler sentences: The Ampang-Kuala Lumpur Elevated Highway (AKLEH) uses open toll collection systems. Since 2015 all toll transactions at the highway's sole toll plaza have been conducted electronically via Touch' n Go cards or SmartTAGs.