Essential tools for signal timing analysis

Traffic Signal

The unique tools in SIDRA INTERSECTION software provide enhanced signal timing solutions that can be applied to different phasing methods with ease. These tools can be used as extensions to the signal timing methods given in the US Highway Capacity Manual. 

Four essential tools for signal timing analysis

SIDRA INTERSECTION software uses the following fundamental methods for signal timing analysis:  

  • Critical Movement Identification method 
  • Use of Target Degrees of Saturation (v/c ratios) for EQUISAT and ACTUATED signal timing methods 
  • Green Split Priority method for coordinated movements and user-specified priority movements 
  • Multiple Green Periods per Movement for phasing and timing requirements related to complex intersection geometry, signal control and multimodal traffic analysis 

Other unique tools of SIDRA signal timing analysis method

In addition to the above basic elements, SIDRA has other unique functionalities for signal timing analysis:

  • Common Control Groups (CCGs),
  • Variable Phasing analysis,
  • Multi Sequence analysis,
  • Pedestrian Movement Timing,
  • Minor Phase Actuation, and
  • Modelling of Turn On Red (RTOR /LTOR) operation.