Branson Transit Study

Travel Demand Analysis –

Ridership Technical Memorandum

 

February 9, 2006

 

 

 

 

 

 

 

prepared for:                                                                              prepared by:

City of Branson                                         

Jacobs Civil Inc.


EXECUTIVE SUMMARY

 

The City of Branson , Missouri is conducting a transit improvements DEIS to assess the need for bus and fixed guideway transit improvements in the State Route 76 corridor. A travel demand analysis was conducted to estimate ridership of the proposed transit system to the year 2030.  This report summarizes the forecasting methodologies and results of this analysis.

 

The methodology developed to forecast future transit ridership in the State Route 76 corridor is based on two functions.  The first function is to estimate candidate transit trips originating outside the project study area.  These external trips consist of residents and employees living outside of the study area who travel into the study area for work or other reasons. These trips also consist of visitors who are staying outside of the study area but make trips into the study area to dine, watch a show, etc.  The second function is to estimate candidate transit trips originating inside the study area.  These internal trips are made up of study area employees who make trips within the State Route 76 corridor during their workday to dine or run errands.  Internal trips are also made up of visitors who are staying in the study area and make trips to dine, shop, or watch a show within the study area.

 

Three primary fixed guideway/bus alternatives were tested within the Branson State Route 76 corridor for the 2030 forecast year.   Each alternative was tested with a transit fare of $.025, $1.00, $1.50, $2.00, and no fare.  It was assumed that transit fares were consistent by mode and there was no transfer fare imposed.  Operating headways for the guideway system were coded as 10 minutes in the peak and 20 minutes in the off-peak.  Operating headways for the feeder bus routes were coded as 10 minutes in the peak and 30 minutes in the off-peak.  Following is a brief description of the alternatives tested.  A more detailed description can be found in the Alternatives section of the report.

 

Transportation System Management (TSM) Alternative

 

The TSM alternative includes the Brown Line which is a six-mile-long bus line extending down Main Street and the 76 Strip with single-direction loops at each end.  This alternative also includes dual bus route service that primarily uses the less-congested color-coded bypass routes in Branson.  The Green bus route loop is about 12 miles long, and the Orange bus route loop is about six miles long.  The two routes overlap for a short distance and interface at a bus transfer center along Gretna Road between Wildwood Drive and Roark Valley Road , which will permit timed transfers between the two routes.

 

Build Alternative A

 

The TSM alternative Green and Orange bus service plus the 6.5-mile-long elevated fixed guideway system with 11 stations.

 

Build Alternative B

 

The TSM alternative Green and Orange bus service plus the 7.5-mile-long elevated fixed guideway system with 13 stations (the base guideway plus the two longer optional routings with two additional stations).

 

In addition to the alternatives listed above, a future northwest extension using the right-of-way of the State Route 465 Ozark Mountain High Road extension to reach Shepherd of the Hills and Silver Dollar City was also evaluated.

 

2030 ridership estimates were forecasted for the three alternatives listed above.  The resulting ridership estimates appear reasonable considering the heavy tourism market in the Branson area as well as the projected future traffic congestion along the State Route 76 corridor and compare well with other similar systems around the country.

 

Ridership forecast results are listed below:

 

2030 Branson Average Daily Boardings

 

 

Transit Fare

Alternative

Mode

No Fare

$.025

$1.00

$1.50

$2.00

TSM

76 Bus

3,508

3,083

2,130

1,650

1,276

Bus

1,517

1,323

895

695

526

Build A

Guideway

14,452

12,949

9,320

7,421

5,874

Bus

2,966

2,622

1,818

1,389

1,078

Change from TSM

Guideway

10,944

9,866

7,190

5,771

4,598

Bus

1,449

1,299

923

694

552

Build B

Guideway

16,623

14,891

10,669

8,460

6,690

Bus

3,735

3,315

2,285

1,779

1,372

Change from TSM

Guideway

13,115

11,808

8,539

6,810

5,414

Bus

2,218

1,992

1,390

1,084

846

 

An approximately 4 mile future northwest extension providing access to Shepherd of the Hills and Silver Dollar City was also tested and resulted in an average net increase of approximately 1,500 boardings per day.

 

 

Branson Travel Demand Analysis –

Ridership Technical Memorandum

 

 

INTRODUCTION

 

The City of Branson , Missouri is conducting a transit improvements DEIS to assess the need for bus and fixed guideway transit improvements in the State Route 76 corridor. A travel demand analysis was conducted to estimate ridership of the proposed transit system to the year 2030.  This report summarizes the forecasting methodologies and results of this analysis.

 

The methodology developed to forecast future transit ridership in the State Route 76 corridor is based on two functions.  The first function is to estimate candidate transit trips originating outside the project study area.  These external trips are made up of residents and employees living outside of the study area who travel into the study area for work or other reasons. These trips are also made up of visitors who are staying outside of the study area but make trips into the study area to dine, watch a show, etc…  The second function is to estimate candidate transit trips originating inside the study area.  These internal trips are made up of study area employees who make trips within the State Route 76 corridor during their workday to dine or run errands.  Internal trips are also made up of visitors who are staying in the study area and make trips to dine, shop, or watch a show within the study area.

 

BACKGROUND

 

The primary forecasting tool used to project transit ridership was a modification of the Branson Transportation Model developed in conjunction with the November 2001 Branson Comprehensive Transportation Plan.  The model network as well as the Traffic Analysis Zone (TAZ) structure and associated socioeconomic data were reviewed and modified to reflect current and future characteristics of the resident, employment, and visitor population in the Branson area.  Since the original Branson Model was a highway-only model, a mode choice model was developed and incorporated into a new transit model that evaluates future transit alternatives.  For ridership forecasting purposes, a 2005 Base Year Model was developed along with a 2030 Future Year Model to be used for transit alternatives testing.

 

The success of forecasting travel demand for a fixed guideway system along the State Route 76 corridor depends on a complete understanding of the travel patterns of visitors and residents.  Visitor and employee travel characteristic surveys were conducted within the study area.  The goal of the surveys was to identify trip generation rates and to gain a better understanding of the travel patterns within the corridor for use in the travel demand model.  Information gathered from surveys was used to establish trip rates to estimate trip distribution in the modified Branson Transportation Model.

 

INTERNAL TRIP ESTIMATION METHODOLOGY

 

The following section describes the methodology used to estimate trips internal to the study area.  Based on the large number of tourist trips in the State Route 76 study area, separate visitor and employee Trip Generation and Distribution models were developed. 

 

Visitor Trip Generation

 

Tourists make up the majority of the trip makers within the State Route 76 study area.  A hotel generation model was developed in order to properly account for visitor trip productions by converting hotel rooms to number of visitors.  Hotel characteristics data was collected from numerous sources including the Branson Lakes Area Hotel / Motel Association.  The majority of the hotels in the Branson area are located directly along State Route 76 accounting for over 60% of the total hotel rooms in the region.  Additional hotels are located just off State Route 76 and are within walking distance to the corridor.  Figure 1 illustrates the locations of hotels within the study area.

 

Figure 1

Hotel / Motel Locations within Study Area

Hotels were assigned to a specific Traffic Analysis Zone (TAZ) based on geographic location.  The existing TAZ structure was modified to achieve a more even distribution of hotels throughout the study area.  All attractions and places, such as major theaters, restaurants and shopping centers, which are typical destinations for visitors, were assigned to the zones as well. Thus, the TAZs include both visitor origins and destinations.

 

Potential daily visitors by hotel was calculated using the number of rooms per hotel multiplied by the Average Peak Occupancy Ratio and the average number of visitors by room.  These statistics were gathered from the hotel surveys and the Branson Lakes Area Chamber of Commerce.  A future growth rate was developed based on the rate of growth of the original model’s socioeconomic data from the 1999 base year to the 2020 forecast year.  This growth rate was applied to the base year visitor trip generation data to calculate the visitor trip generation for the 2030 forecast year.  That rate of growth calculates to almost 2.5% a year.

 

Based on the visitor trip logs collected from the Visitor Trip Surveys, a Visitor Trip Rate by purpose was created.  Table 1 contains visitor trip rates by purpose.  Table 2 contains the associated number of visitor trip productions by purpose.

 

Table 1

Daily Visitor Trip Rates by Purpose

From/To

Hotel

Theaters

Shopping

Restaurants

Other

Total

Hotel

0

0.38

0.30

0.66

0.22

1.57

Theaters

0.52

0.01

0.08

0.12

0.04

0.80

Shopping

0.25

0.12

0.049

0.24

0.09

0.76

Restaurants

0.40

0.30

0.26

0

0.26

1.23

Other

0.38

0.02

0.11

0.21

0.04

0.87

Total

1.57

0.84

0.81

1.24

0.77

5.24

 

Table 2

Average Daily Visitor Trip Productions by Purpose

From/To

Hotel

Theaters

Shopping

Restaurants

Other

Total

Hotel

0

10,795

8,452

18,465

6,276

43,988

Theaters

14,727

391

2,371

3,542

1,367

22,398

Shopping

7,085

3,347

1,367

6,862

2,566

21,227

Restaurants

11,185

8,452

7,280

0

3,933

30,850

Other

10,795

586

3,152

5,886

0

20,419

Total

43,792

23,571

22,622

34,755

14,142

138,882

 

Employee Trip Generation

 

Another significant number of trips within the State Route 76 corridor are made by study area employees during their workday.  Because the travel patterns associated with these trips differ from visitors, a separate trip generation methodology was developed.

 

The numbers of Employees within the study area were identified by using a list generated from InfoUSA.  Employees were assigned to TAZs based on their geographic location.   A future growth rate was developed based on the rate of growth of the original model’s socioeconomic data from the 1999 base year to the 2020 forecast year.  This growth rate was applied to the base year employee trip generation data to calculate the employee trip generation for the 2030 forecast year.  That rate of growth calculates to a little less than 2.5% a year.

 

An Employee Trip Rate by purpose was created using the data collected from the Employee Travel Surveys.  Table 3 contains employee trip rates by purpose.  Table 4 contains employee trip productions by purpose.

 

Table 3

Daily Employee Trip Rates by Purpose

Purpose

Trip Rate

Work Based Shopping

0.36

Work Based Restaurant

0.41

Work Based Work Related

0.25

Work Based Other

0.39

 

 

Table 4

Average Daily Employee Trip Productions by Purpose

Purpose

Productions

Work Based Shopping

10,542

Work Based Restaurant

11,825

Work Based Work Related

7,184

Work Based Other

11,436

Total

40,988

 

 

Visitor Trip Distribution

 

Productions for visitor trips were calculated from the Trip Generation rates and their attractions were distributed across all Study Area TAZs. Then a Gravity Model was used to distribute the trips between the many different TAZs within the study area.  All friction factors and skim times were set to one (1), so that it is possible for any Visitor trip to go to any other TAZ within the study area.

 

Employee Trip Distribution

 

Just as with the visitor trips, productions for employee trips were calculated from the Trip Generation rates and their attractions were distributed across all Study Area TAZs. Then a Gravity Model was used to distribute the trips between the many different TAZs within the study area.  All friction factors and skim times were set to one (1), so that it is possible for any employee trip to go to any other TAZ within the study area.

 

EXTERNAL-INTERNAL TRIP ESTIMATION METHODOLOGY

 

A significant portion of trips in the study area to be considered for transit purposes is made by the number of visitors and residents who are traveling into the State Route 76 corridor from outside of the Study Area.  These external to internal (EI) trips are captured from the original Branson model, and are distributed into the study area by the model.

 

In order to capture the right combination of trips from outside of the study area, the study area TAZs and the surrounding TAZs were aggregated into 6 distinct groupings, three internal to the study area and three external to the study area.  Since the State Route 76 corridor runs West-to-East, so to were the groups sub-divided, one to the West, one in the middle, and one to the East for both the study area and the surrounding area TAZs.

 

The following Figure 2 represents the TAZs as grouped by the 6 distinct groupings mentioned above.

Figure 2

Study Area TAZ Groupings


For this study, it is assumed that two Park and Ride (PnR) facilities will be developed in the 2030 future year scenarios.  Therefore, all candidate EI trip origins for the guideway system are concentrated in the two TAZs in which these PnR facilities will be contained.  Access to the guideway alignment will be provided via stations at the PnR facilities.

 

To determine the most likely candidate EI trips for the guideway system, it is most reasonable to assume that any person trips coming into the study area with their destination in the same area as the PnR facilities will not likely use the PnR facilities or guideway transit, but go directly to their final destination.  Therefore, only the trips that have destinations toward the central or opposite end of the study area from their origins are being considered as EI trips for this study.  These trips have the most potential for using the PnR facilities and transit to get to their ultimate destination.  This methodology was used primarily for forecasting candidate EI trips for the guideway system.  Appropriate access was coded for the two bus loops along their corresponding routes, portions of which are outside of the study area.

 

The forecast year of the original Branson Highway model was 2020.  A growth rate was developed based on the rate of growth of the original model’s socioeconomic data from the 1999 base year to the 2020 forecast year.  This growth rate was applied to the 2020 dataset to calculate the new 2030 future year horizon needed for this study.  That rate of growth calculates to a little less than 2.5% a year.

 

The following Table 5 shows the summary of trips as calculated to the 2030 future year horizon.  The highlighted trips from row 4 to columns 2 and 3, and the trips from row 6 to columns 1 and 2 represent the EI trip totals.

 

Table 5

2030 External Trips

 

External to Internal Trip Distribution

 

As mentioned above, the EI trips distribution was preserved from the original Branson model using the same Friction Factors and Skim file, as derived from “skimming” the Highway network.  The trips used, as described above as candidate trips for the PnR facilities and transit, had only their origins collapsed into one of the two TAZs representing the PnR lot locations.  From these two TAZs, the EI trips either proceed by the highway network or access the transit network to get to their final destinations within the study area.

 

MODE CHOICE AND ASSIGNMENT

 

A mode choice model was developed for this study to determine an acceptable mode split (ratio of highway to transit trips) within the study area.  The three modes designated for study are auto trips, transit trips by walk to bus, and walk / bus access to a fixed-guideway system that runs almost exclusively down State Route 76.  The mode choice components to calculate the utility values needed include walk to transit times, highway and transit vehicle travel times, transit wait times, access and egress, auto operating costs, and transit fare cost.

 

After the mode choice calculations, the final transit trips by mode are assigned to the transit network.  This allows for the true unlinked ridership by each transit route and mode to be determined, since some of the fixed-guideway ridership comes from bus access on the network in addition to walk access.

 

Model Validation

 

Model validation is a key component in the development of a suitable model to forecast transit ridership.  Ensuring that model forecasts reasonably match existing transit ridership is important in order to properly forecast future ridership.  Since there is currently no transit service in the Branson area, a comprehensive review of transit models used in other tourism based markets was conducted.  These include:

·                                              Las Vegas

·                                              Orlando Area

·                                              Miami/South Florida

·                                              Tampa Bay

 

In order to ensure that the Branson model included appropriate sensitivities to the introduction of transit as well as changes in transit characteristics, a number of transit related parameters were evaluated from the above listed models.

 

The following parameters relating to transit usage and mode choice were reviewed and incorporated into the Branson model as appropriate.

·                                              Mode Bias Constants

·                                              Auto Operating Costs

·                                              Access to transit coefficients

·                                              Wait and transfer time coefficients

·                                              Transit fare coefficients

 

Appendix 1 lists the parameters used by the Mode Choice model.

 

ALTERNATIVES TESTING

 

Three primary fixed guideway/bus alternatives were tested within the Branson State Route 76 corridor for the 2030 forecast year.   Each alternative was tested with a transit fare of $.025, $1.00, $1.50, $2.00, and no fare.  It was assumed that transit fares were consistent by mode and there was no transfer fare imposed.

   

Transportation System Management (TSM) Alternative

 

The TSM alternative represents the FTA mandated baseline scenario that the build alternatives will be compared against.  The TSM alternative includes the Brown Line which is a six-mile-long bus line extending down Main Street and the 76 Strip with single-direction loops at each end.  This alternative also includes dual bus route service that primarily uses the less-congested color-coded bypass routes in Branson.  The Green bus route loop is about 12 miles long, and the Orange bus route loop is about six miles long.  The two routes overlap for a short distance and interface at a bus transfer center along Gretna Road between Wildwood Drive and Roark Valley Road , which will permit timed transfers between the two routes.

 

Build Alternative A

 

Alternative A is made up of an elevated guideway route on the State Route 76 Strip stretching between the east downtown and west Celebration City ends of the core study-area.  This route is about 6.5 miles long and includes 11 stations.  The stations are spaced about one half mile apart, which places most all destinations along the route within a quarter-mile walk distance of the stations, (which is considered a normal or acceptable walking distance to a transit station).  The route deviates from the State Route 76 corridor east of US 65 to avoid the steep grades along Main Street and to better accommodate a future extension of the line.  The route includes a park-n-ride station at or near both the east and west ends.  The east park-n-ride facility is located at the station in the northwest quadrant of State Route 76 and US 65.  The west park-n-ride facility is located at a station on State Route 376 west of the Celebration City station.  Alternative A also includes the Green and Orange Bus routes which work as a feeder system for the fixed guideway. The bus routes interface with the fixed guideway at the east park-n-ride station and at Main Street and the railroad tracks, serving the Main Street retail strip, Branson’s Landing, and the convention center and hotel.  The bus routes interface with the west end of the fixed guideway at Wildwood Drive , Gretna Road (State Route 165), Celebration City , and the optional Shepherd of the Hills station.   

 

 Build Alternative B

 Alternative B is the same as Alternative A with the addition of two guideway alignment alternates, which will extend the guideway route to about 7.5 miles in length and add two more stations for a total of 13.  These two alternates are designed to serve additional destinations, notably, the Skaggs Health Center (a large employer and local community service facility), the Factory Merchant’s Mall (a major retail destination), and State Route 376 hotels and theaters, which are concentrated in the Shepherd of the Hills Expressway stretch east of State Route 76. 

 

In addition to the alternatives listed above, a future northwest extension using the right-of-way of the State Route 465 Ozark Mountain High Road extension to reach Shepherd of the Hills and Silver Dollar City was also evaluated.

 

Operational Characteristics

 

Operating headways (the time between transit vehicles arriving at a stop) for the TSM Alternative’s Brown, Green, and Orange bus routes were set at ten minutes during peak periods and 30 minutes in the off-peaks.   Headways for the fixed guideway component of the Build Alternatives were tested at ten minutes in the peak periods and 20 minutes in the off-peaks with the Green and Orange bus feeder operating headways matching the TSM alternative. 

 

The average speed for the fixed guideway system, with half-mile station spacing, was tested at an average of about 15 mph.  The average operating speed for the bus service was tested at an average of about 12 mph on the 76 Strip and 20 mph on the color-coded routes. 

 

RIDERSHIP FORECASTS

 

2030 Ridership estimates were forecasted for the three alternatives listed above.  Ridership forecast results are illustrated in Table 6.

 

Table 6

2030 Branson Average Daily Boardings

 

 

Transit Fare

Alternative

Mode

No Fare

$.025

$1.00

$1.50

$2.00

TSM

76 Bus

3,508

3,083

2,130

1,650

1,276

Bus

1,517

1,323

895

695

526

Build A

Guideway

14,452

12,949

9,320

7,421

5,874

Bus

2,966

2,622

1,818

1,389

1,078

Change from TSM

Guideway

10,944

9,866

7,190

5,771

4,598

Bus

1,449

1,299

923

694

552

Build B

Guideway

16,623

14,891

10,669

8,460

6,690

Bus

3,735

3,315

2,285

1,779

1,372

Change from TSM

Guideway

13,115

11,808

8,539

6,810

5,414

Bus

2,218

1,992

1,390

1,084

846

 

Changes in transit fares results in an associated increase or decrease in ridership considered to be within a reasonable range for this type of transit system.

 

An increase in ridership in Alternative B can be attributed to increased access to destinations such as the Skaggs Health Center (a large employer and local community service facility), the Factory Merchants Mall (a major retail destination), and State Route 376 hotels and theaters, which are concentrated in the Shepherd of the Hills Expressway stretch east of State Route 76.  The alternate alignment on the west end of the corridor, (Alternate B2) accounted for 1,100 average daily boardings while the alternate alignment on the east side of the corridor (Alternate B1) accounted for 200 average daily boardings.

An approximately 4 mile future northwest extension providing access to Shepherd of the Hills and Silver Dollar City was also tested and resulted in an average net increase of approximately 1,500 boardings per day.

 

Traffic Impacts

 

Travel demand forecasts indicate that the addition of an elevated guideway system along the State Route 76 corridor should have a positive impact on future traffic congestion.  It is estimated that the proposed guideway system can expect to account for a decrease of between 3,800 to 11,000 daily automobile trips from the State Route 76 corridor depending on transit operating characteristics and chosen alignment.

 

Park and Ride Station Parking Demand

 

The proposed transit system includes two park-n-ride stations at or near both the east and west ends of the State Route 76 corridor.  The east park-n-ride facility is located at the station in the northwest quadrant of State Route 76 and US 65.  The west park-n-ride facility is located at a station on State Route 376 west of the Celebration City station.  The purpose of these facilities is to serve potential guideway trips entering the State Route 76 corridor by automobile.  Average daily unconstrained parking demand at these facilities was estimated based on the number and types of trips (visitor or resident/employee) accessing the facility and their associated auto occupancy rate.  An average auto occupancy rate of 1.2 was used for resident/employee trips and 2.5 for visitor trips.

 

It is estimated that the east park-n-ride station average daily unconstrained parking demand will range from 860 spaces to 2,200 spaces depending on transit operating characteristics and chosen alignment.  It is estimated that the west park-n-ride station average daily unconstrained parking demand will range from 650 spaces to 1,500 spaces depending on transit operating characteristics and chosen alignment. 

 

CONCLUSION

 

Ridership forecasts were conducted for a proposed elevated guideway system as part of the Branson Transit Study DEIS.  Forecasting methodologies used to estimate ridership in 2030 were developed consistent with standard transit forecasting methodologies used in other parts of the country. 

 

It is estimated that the proposed guideway system can expect to generate between 5,874 and 16,623 boardings per day depending on fare structure and the final preferred alignment chosen.  This estimate appears reasonable considering the heavy tourism market in the Branson area as well as the projected future traffic congestion along the State Route 76 corridor.


APPENDIX 1


Branson Mode Choice Model Input Constants and Coefficients

 

Definition

Value

Auto Operating Costs per Mile                                    

Auto Mode Constant                                                               

Bus Transit Modal Constant                                                     

Premium Transit(Guideway) Modal Constant* 

*Represents 20min IVT savings

Run Time Coefficient

Auto Cost Coefficient

Transit Fare Coefficient

Walk Coefficient

Transit First Wait Coefficient

Transit Second Wait Coefficient

Transit Transfer Time Coefficient

Transit Number of Transfers Coefficient

Transit Nest Coefficient

Auto Nest Coefficient

Parking Cost Coefficient

Terminal Time

0.19

0.00

-0.019

0.381

 

-0.02

-0.13

-0.15

-0.045

-0.034

-0.023

-0.045

-0.045

0.3

0.8

0.0038

1.00