Travel Time Studies

On October 19,2000 with the help of diligent colleagues at Dallas County, we found and (literally) blew the dust off files containing travel time studies the County conducted in 1991. Some of those studies covered Farmers Branch streets. City Traffic staff has replicated some of the studies to allow for a comparison of travel times from 1991 to 2000.

The studies were accomplished using the “Floating Car” method. This type of study means driving at the prevailing traffic speed and timing between points along the route. Studies were performed in morning and evening peak periods and from 12-2 p.m. The Routes studied in 1991 included Webb Chapel Road, Midway Road, Spring Valley Road, Alpha Road and Dallas Parkway. Results were reported in seconds, therefore an increase in travel time would be bad news for motorists while a decrease would be good news.

The results of the comparisons so far are summarized below. We hope you find the information as interesting as we do. For a context against which to judge the results, traffic on Farmers Branch thoroughfares increased by an average of over 30% from 1990 to 2000.

Webb Chapel Rd. (IH635 to Southern Pines)    a.m. peak       9% increase

                                                              p.m. peak      15% decrease

 

Webb Chapel (Southern Pines to IH635)        a.m. peak         5% decrease

                                                             p.m. peak         3% decrease

 

Midway Rd. (IH635 to Spring Valley)             a.m. peak      13% decrease

                                                             p.m. peak      12% decrease

 

Midway Rd. (Spring Valley to IH635)             a.m. peak        9% decrease

 

 

Spring Valley Rd. (Marsh to Dallas Pkwy.)      a.m. peak       24% decrease

                                                             p.m. peak       26% increase

                                                                                   

Spring Valley Rd. (Dallas Pkwy. to Marsh)      a.m. peak       24% decrease

                                                             p.m. peak        4% decrease

 

Alpha Rd. (Midway to Dallas Parkway)           a.m. peak       30% decrease

 

Alpha Rd. (Dallas Parkway to Midway)           a.m. peak       39% decrease

 

As further studies are completed we will update the results posted here.