Hi Chenhuikhoo,

Here are some articles that may answer your question :) Hope they help!

New On-Board Units for Next Gen ERP Units:

https://www.motorist.sg/article/685/new-on-board-units-for-next-generation-erp-system-to-be-installed-for-free-from-mid-2021

ERP Gantries, Rates and Timings:

https://www.motorist.sg/article/681/a-car-owner-s-guide-to-erp-gantries-rates-and-operating-hours-2020