McTrans - Moving Technology
 
HCS+T7F Release 5.3

... has been released and automatically
sent to currently registered users on CD.

The following new features are included in HCS+T7F:		   HCS+T7F

Interchanges:

This new module to implement the recently approved procedures in the HCM Chapter 26 for Interchange Ramp Terminals. The new methodology covers the analysis of eight interchange types, including, Diamond Interchange (CUDI, CDI, TUDI); Partial Cloverleaf A – 4 Quadrants (Parclo A 4Q); Partial Cloverleaf A – 2 Quadrants (Parclo A 2Q); Partial Cloverleaf B – 4 Quadrants (Parclo B 4Q); Partial Cloverleaf B – 2 Quadrants (Parclo B 2Q); Partial Cloverleaf AB – 2 Quadrants (Parclo AB 2Q); and Partial Cloverleaf AB – 4 Quadrants (Parclo AB 4Q), with Single-Point Urban Interchange (SPUI) to be added this year;

The analysis is based on the procedures for signalized intersections, but adds several components to account for the unique relationship between signals controlling the ramps at interchanges. 
 

Turn Radius: Adjusts saturation flow rate for the effects of turning movement geometry on vehicle headway.

Lane Utilization: Adjusts the saturation flow rate for uneven lane distribution due to downstream turn proportions.

Downstream Queue: Provides for additional lost time caused by the blocking of upstream movements by the queue.

Demand Starvation: Provides for additional lost time created when signal timing inhibits the downstream demand.

Traffic Pressure: Adjusts the saturation flow rate for the reduction in headway created with higher demand flows.
Interchanges

The measures of effectiveness are computed for the various origin-destination (O-D) pairs to completely describe operations through both intersections.  Level of Service (LOS) is provided for each O-D and is based on control delay in seconds per vehicle (like in Signalized Intersections), but with modified LOS thresholds to account for the vehicle traveling through two intersections.  There are also two additional provisions for LOS F.  If either the volume-to-capacity ratio or the queue storage ratio exceeds 1.0, the LOS is F.

HCS+Interchanges files can be imported into TRANSYT-7F for generatiing TSIS-CORSIM* files for one-touch animation.

TRANSYT-7F:

TRANSYT-7F is now integrated with HCS+ to provide seamless access to the profession’s most powerful signal timing optimization in HCS+T7F.  This new combined software package provides for advanced signal timing optimiation for intersections, arterials or networks, including one-touch animation through TSIS-CORSIM*.  Details of the features contained in the new Release 11.2 of TRANSYT-7F can be accessed at: TRANSYT-7F

 *Animation requires TSIS-CORSIM, which is sold separately.

Catalog:

Click here for pricing, a complete description and to order.

HCS+T7F is an office license with agency licenses available.

Discounts are available for qualified academic purchases.