The development of the Batang Integrated Industrial Estate (KIT Batang) is predicted to affect the performance of the surrounding roads. This study aims to analyze roads performance around industrial estate by referring to the Indonesian Highway Capacity Manual 1997 using a "modified four-step model"(overriding the mode choice stage). The result shows that in 2024, the presence of KIT Batang will not have a significant impact on the surrounding roads network. However in 2029, there will be a significant changes, indicated by worsening road performance - in this case referring to travel speed, service level, and volume-capacity ratio - where toll roads have shown an average level of service F. The do-something scenario is carried out by widening the toll and arterial roads in 2029. Analysis of simulation results shows improved performance on toll roads with an average service level from F to C and on arterial roads from C to B. © Published under licence by IOP Publishing Ltd.