Los Angeles District 4 Data Analysis Report

Transcription

1 Los Angeles District 4 Data Analysis Report November, 217

2 Table of Contents Introduction... 2 A. Project Background... 3 B. Data Collection Methodology... 4 i. ADT (24 Hour Machine Counts)... 6 ii. Occupancy Study... 6 iii. Pedestrian and Bicycle Study... 6 Beachwood Study Area... 8 A. Week 1 vs. Week 2: Beachwood Drive ADT Volumes... 9 B. Week 1 vs. Week 2: Beachwood Village On-Street Occupancy Study...11 C. Week 1 vs. Week 2: Beachwood Village Lot Occupancy Study...14 D. Week 1 vs. Week 2: Overall Trends and Comparisons...15 Lake Hollywood Park Study Area A. Week 1 vs. Week 2: Lake Hollywood Park ADT Volumes...18 i. Canyon Lake Drive...18 ii. Mulholland Highway (West Side)...21 iii. Mulholland Highway (East Side)...24 B. Week 1 vs. Week 2: Lake Hollywood Park On-Street Occupancy Study...27 C. Week 1 vs. Week 2: Overall Trends and Comparisons...3 Ledgewood Drive & Deronda Drive/Trail Head Study Area A. Week 1 vs. Week 2: Ledgewood Drive & Deronda Drive/Trail Head ADT Volumes..32 i. Ledgewood Drive...32 ii. Deronda Drive...35 B. Week 1 vs. Week 2: Deronda Drive Pedestrian & Bicycle Counts...38 i. Pedestrian Counts...38 ii. Bike Counts...41 C. Week 1 vs. Week 2: Overall Trends and Comparisons...41 Canyon Drive Study Area A. Week 1 vs. Week 2: Canyon Drive On-Street Occupancy Study...44 B. Week 1 vs. Week 2: Canyon Drive Lots Occupancy Study...46 C. Week 1 vs. Week 2: Canyon Drive Pedestrian & Bicycle Counts...48 i. Pedestrian Counts...48 ii. Bike Counts...51 D. Week 1 vs. Week 2: Overall Trends and Comparisons...51 Lake Hollywood Drive & Wonder View Trail Head Study Area A. Week 1 vs. Week 2: Lake Hollywood Drive On-Street Occupancy Study...54 A. Week 1 vs. Week 2: Wonder View Drive Trail Head Pedestrian & Bicycle Counts...55 i. Pedestrian Counts...56 ii. Bike Counts...58 C. Week 1 vs. Week 2: Overall Trends and Comparisons...58 Los Angeles District 4 Data Analysis Report, 1

3 Introduction This report presents the findings from data collection efforts held across two weeks in September 217 at key locations within Los Angeles District 4 and Griffith Park. Data collected included annual daily traffic counts (ADT), on- and off-street occupancy counts, and pedestrian and bike counts. This report contains the following sections: Project Background. This section provides a synopsis of the project purpose and describes existing issues. Data Collection Methodology. This section details data collection methods utilized. Beachwood Study Area. This section provides a week by week comparison of ADT counts, on- and off-street occupancy, pedestrian and bike counts, and presents key trends. Lake Hollywood Park Study Area. This section provides a week by week comparison of ADT counts, on-street occupancy, pedestrian and bike counts, and presents key trends. Ledgewood Drive & Deronda Drive/Trail Head Study Area. This section provides a week by week comparison of ADT counts, pedestrian and bike counts, and presents key trends. Canyon Drive Study Area. This section provides a week by week comparison of on- and off-street occupancy, pedestrian and bike counts, and presents key trends. Lake Hollywood Drive & Wonder View Trail Head Study Area. This section provides a week by week comparison of ADT counts, pedestrian and bike counts, and presents key trends. Los Angeles District 4 Data Analysis Report, 2

4 A. Project Background In March of 217, the Los Angeles City Council approved Councilman David Ryu s request for a comprehensive study for improving park access, safety, and mobility in Griffith Park and around the Hollywood Sign. Due to the high number of tourists and visitors that flood the area to take pictures of the sign, parking, as well as vehicular and pedestrian traffic, have become significant issues within the area. Based on DIXON s existing project with Los Angeles Department of Recreation and Parks (RAP) and Griffith Park, Councilman Ryu s office reached out to DIXON to inquire of services for a comprehensive access and mobility study. As such, DIXON was retained and completed an initial site visit to the neighborhoods within District 4 and Griffith Park on July 3 rd, 217. In addressing the above issues, DIXON procured the services of National Data & Surveying Services (NDS) to complete a data collection effort across four study areas in and around the 4,355-acre Griffith Park. The four study areas consist of: Beachwood Study Area, Lake Hollywood Park Study Area, Deronda Drive Study Area, and Canyon Drive Study Area. A detailed description of each study area is provided below in the corresponding sections. Los Angeles District 4 Data Analysis Report, 3

5 B. Data Collection Methodology DIXON conducted a multifaceted data collection effort along the western portion of Griffith Park including the areas of Hollywoodland, Lake Hollywood Park, as well as the major thoroughfares that traverse this area. Data collection was completed at multiple locations within each study area in the form of average daily traffic (ADT) volume counts, on- and off-street vehicle occupancy counts, and pedestrian and bike counts. Data collection was completed over a two-week period. Week 1 comprised Friday, September 1 st through Monday, September 4 th, and Week 2 comprised Friday, September 15 th through Monday, September 18 th. The following tables outline the specific locations for data collection: Location ADT (24 Hour Machine Counts) Days Friday Saturday Sunday Monday Beachwood Dr. X X X X Lake Hollywood Park X X X X Mulholland Hwy (2) X X X X Deronda Dr. X X X X Table 1. Locations and days of ADT (24 Hour Machine Counts) Pedestrian Study (Pedestrian Counts) Location Days Friday Saturday Sunday Monday Canyon Dr. (Pedestrian Park Entrance) X X X Wonder View Trail Head X X X Deronda Drive Trail Head X X X Table 2. Locations and days of pedestrian counts. Los Angeles District 4 Data Analysis Report, 4

6 Location Occupancy Study (Occupancy Counts) Days Friday Saturday Sunday Monday Canyon Dr. (Lots A & B) X X X Beachwood Village Lot (Rear of shops) X X X Lake Hollywood Park (on-street) X X X Beachwood Dr./Westshire Dr./Belden Dr. X X X Lake Hollywood Dr. X X X Canyon Dr. (on-street) X X X Surrounding Beachwood streets (on-street) X X X Canyon Lake Dr. & adjacent streets (onstreet) Table 3. Locations and days of occupancy counts. X X X Pedestrian & Occupancy Study Time Frequency (Fri, Sun, Mon) Location Time 9:am 12: 3: 6: Pedestrian Study Canyon Dr. (Pedestrian Park Entrance) X X X X Wonder View Trail Head X X X X Deronda Drive Trail Head X X X X Occupancy Study Canyon Dr. (Lots A & B) X X X X Beachwood Village Lot (Rear of shops) X X X X Lake Hollywood Park (on-street) X X X X Beachwood Dr./Westshire Dr./Belden Dr. X X X X Lake Hollywood Dr. X X X X Canyon Dr. (on-street) X X X X Surrounding Beachwood streets (on-street) X X X X Canyon Lake Dr. & adjacent streets (on-street) X X X X Table 4. Locations and times of occupancy and pedestrian counts. Los Angeles District 4 Data Analysis Report, 5

7 i. ADT (24 Hour Machine Counts) DIXON s objective regarding traffic counts was to determine the volume of vehicles passing certain points within neighborhoods. These are dense neighborhoods with narrow and impassable streets at certain points. The perceived volume of traffic recently is creating issues for residents and causing a level of safety concern for the City. The City s General Plan defines maximum ADT and vehicle per hour standards for various street classifications. For the purposes of this study, the street classifications from the City s Department of Public Works were utilized. The ADT charts throughout this report are marked with reference lines based on these standards. ii. Occupancy Study DIXON s objective regarding occupancy counts (vehicle counts) was to determine the parking space utilization of a few key lots and streets located in the area. The Canyon Drive lots are utilized by hikers entering the Hollywood Sign Hike Trailhead. The Beachwood Village lot is a public lot utilized by customers shopping at Beachwood Market and adjacent businesses. The City and residents are concerned however that visitors are utilizing the lot as a location to park before walking into the neighborhoods towards the Hollywood Sign. It is an industry standard that parking occupancy should remain below 85%. By maintaining at least a 15% vacancy rate, congestion will be minimized from drivers looking for parking. This will improve traffic flow while improving the overall experience. For reference, this occupancy standard is marked on all parking occupancy graphs. Additionally, the parking occupancy tables have areas of concern highlighted in red, areas approaching high occupancy in yellow, and areas with ample supply in green. iii. Pedestrian and Bicycle Study DIXON s objective regarding the pedestrian and bicycle counts was to determine the volume of hikers and cyclists that are utilizing the trails. The data is meant to reveal utilization trends throughout each day and on a daily basis. Los Angeles District 4 Data Analysis Report, 6

8 Legend Occupancy ADT Volume Bike & Pedestrian Figure 1. Map of data collection methods utilized in each study site.

9 Beachwood Study Area West of Canyon Drive, Beachwood Drive leads up to Sunset Ranch and Griffith Park. Leading up the Beachwood Market, there are views of the Hollywood Sign from the road. Many visitors park along Beachwood Drive near Glen Alder Street and Glen Oak Street to snap a picture with the Sign. Unfortunately, this meant that many visitors were standing in the middle of the roadway where the view is unobstructed. This is a safety hazard that should be addressed. There are no parking restrictions around the small commercial area near Beachwood Market, and there are no red or green zones along Beachwood Drive. The Beachwood Village parking lot serves visitors to the area including hikers. This lot does not have any posted restrictions. There are a few residential permit parking zones north of the commercial area, leading up towards the Park. In Permit District 239, parking is prohibited between 8:am and 4: on weekends and holidays only. Further north are Permit Districts 188 and 184 which prohibit parking from 8:am until 6:, also on weekends and holidays. Permit holders are exempt from the parking restrictions. A recent lawsuit between Sunset Ranch and the City resulted in the closure of the Beachwood Gate. The Court ordered that that City provide a different access point to the Hollyridge Trail near the Beachwood Gate instead of interfering with the Ranch s roadway easement. The City is also prohibited from interfering with the ingress and egress of vehicles doing business with the Ranch at the Beachwood Gate. The closure of the Beachwood Gate for public pedestrian access has been a controversial issue, particularly among the local residents. Los Angeles District 4 Data Analysis Report, 8

10 A. Week 1 vs. Week 2: Beachwood Drive ADT Volumes ADT counts were collected along Beachwood Drive between Belden and Westshire Drive. The City of Los Angeles Department of Public Works classifies Beachwood Drive as a collector street. Chapter 6 of the City s General Plan defines 1, as the maximum allowable ADT rate for collector streets. Additionally, up to 6 vehicles per hour is the performance criteria set for collector streets. ADT volumes varied across each data collection week, with Week 2 experiencing marginally higher volumes (Figure 2). During both weeks, the highest volumes were observed on Saturdays peaking at 7,287 counts during Week 2. This is comfortably below the City s defined ADT limit for collector streets and thus, does not pose any initial concern. The dashed red line below in Figure 2 marks the ADT limit. 1 9 Total ADT Volumes Beachwood Friday (9/1) Saturday (9/2) Sunday (9/3) Monday (9/4) Friday (9/15) Saturday (9/16) Sunday (9/17) Monday (9/18) Figure 2. Total ADT volumes observed on each day, Beachwood Study Area. The operational criteria of 6 vehicles per hour for collector streets translates to 1,8 vehicles per three hour data collection period. While ADT volumes were well below the criteria for collector streets, when considering the vehicles per hour, there were periods that approached the upper limit. Between 12 and 6, traffic neared the upper limit of what Beachwood Drive can handle comfortably on certain days. Los Angeles District 4 Data Analysis Report, 9

11 Week 1: ADT Volumes Beachwood am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 3. Week 1 ADT volumes by time period, Beachwood Study Area Week 2: ADT Volumes Beachwood 12am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 4. Week 2 ADT volumes by time period, Beachwood Study Area. Los Angeles District 4 Data Analysis Report, 1

12 Aggregating data to weekly averages reveals no further differences between data collected in Week 1 and Week 2 (Figure 5). When analyzing average ADT volumes by time period, the data is shown once again to be consistent across both weeks. The highest ADT volumes were recorded during the 12-3, and 3-6 time periods. However, during those periods ADT volumes averaged across the week are well within the 1,8 vehicles per collection period criteria. A minor difference observed was the slightly higher ADT volumes recorded in Week 2 during the 3 to 6 period. This amounted to approximately 15 more counts compared with Week Week 1 vs. Week 2: ADT Volumes by Time Period Beachwood 12am - 3am 3am - 6am 6am - 9am 9am am Week 1 Week 2 Figure 5. Week 1 and Week 2 average ADT volumes by time period, Beachwood Study Area. B. Week 1 vs. Week 2: Beachwood Village On-Street Occupancy Study On-street occupancy counts were recorded on the streets surrounding the small commercial area near Beachwood Market. The streets analyzed were Beachwood Drive, Belden Drive, and Westshire Drive. As with ADT volumes, on-street occupancies displayed similar characteristics in both Week 1 and Week 2, the latter averaging 58% daily occupancy compared to 51% during Week 1. On-street occupancy generally decreased from the 12 period onwards into the evening across both weeks (Figure 6). Two exceptions to this pattern are seen on Sunday Week 2 where occupancies actually increased during the 6 period. Additionally, both Mondays show more consistent occupancy rates varying less throughout the day. Los Angeles District 4 Data Analysis Report, 11

13 Week 1 vs. Week 2: On-Street Occupancy Beachwood 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % 9: am 12: 3: 6: 9: am 12: 3: 6: 9: am 12: 3: 6: Friday Sunday Monday Week 1 Week 2 Figure 6. Week 1 and Week 2 on-street occupancy, Beachwood Study Area. Below, average occupancy is displayed by day and time period across both weeks (Figure 7). Fridays and Sundays exhibit the same pattern of variation in occupancies throughout the day Sundays showing more extreme variation. On both days, on-street occupancy is highest during the 9am and 12 periods. Occupancy peaks at 12 at 73% before decreasing in each successive time period. In contrast, Mondays did not exhibit the same rising and falling pattern. There is less variation in on-street occupancies throughout the day, remaining constant around 45%. It should be noted that on no day and in no time period did on-street occupancy surpass the industry standard of 85%. Above this rate, vehicle turnover is minimal and available spaces decrease, resulting in increased congestion from vehicles circling blocks searching for spaces. Los Angeles District 4 Data Analysis Report, 12

14 Average On-Street Occupancy Beachwood 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % Friday Sunday Monday Average 9: am 12: 3: 6: Figure 7. Average on-street occupancy by time period, Beachwood Study Area. Table 5 displays average on-street occupancies by street segment within the Beachwood Study Area. Beachwood Drive from Woodhaven Drive to Belden Drive averaged 86% occupancy across both weeks. The section along Beachwood Drive from Westshire Drive to Glen Oak Street experienced the second highest average occupancy rate at 76%. This is more noteworthy due to the higher number of parking spaces available on this section of Beachwood Drive. Location Beachwood Dr. from Woodhaven Dr. to Belden Dr. Beachwood Dr. from Belden Dr. to Westshire Dr. Beachwood Dr. from Westshire Dr. to Glen Oak St. Belden Dr. from Beachwood Dr. to Woodshire Dr. Westshire Dr. from Beachwood Dr. to Woodhaven Dr. Westshire Dr. from Woodhaven Dr. to 2748 Westshire Dr. Average On-Street Occupancy Rates: Beachwood Inventory Occupancy Rates 9:am 12: 3: 6: Avg % 28% 23% 23% 25% 5 13% 93% 77% 7% 86% 2 87% 88% 71% 59% 76% 15 72% 77% 63% 54% 67% 4 63% 67% 58% 42% 57% 6 61% 75% 78% 69% 71% Totals 77 59% 62% 44% 46% 55% Table 5. Week 1 and Week 2 Average on-street occupancy by time period, Beachwood Study Area. Los Angeles District 4 Data Analysis Report, 13

15 C. Week 1 vs. Week 2: Beachwood Village Lot Occupancy Study The Beachwood Village Lot is located behind the Beachwood Market. Off-street occupancy was recorded on the same days and time periods as on-street occupancies described above for the same two-week period. Occupancies at the Beachwood Village Lot were almost identical for both weeks, averaging approximately 4% occupancy. Comparing both data collection periods reveals no distinct pattern in how occupancy varies throughout each day observed at this location (Figure 8). However, one similar trend is that the lowest occupancies were generally recorded during the 3 and 6 periods on all days and both weeks. The highest occupancies of all were recorded during the 12 period on Sundays. Occupancy peaked at 97% on Sunday during Week 1 at that time. 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% Week 1 vs. Week 2: Beachwood Village Lot Occupancy Beachwood % 9: am 12: 3: 6: 9: am 12: 3: 6: 9: am 12: 3: 6: Friday Sunday Monday Week 1 Week 2 Figure 8. Week 1 and Week 2 Beachwood Village Lot occupancy, Beachwood Study Area. Below, average occupancy is displayed by day and time period across both weeks (Figure 9). As with on-street occupancies, Fridays and Sundays exhibited the same variation in occupancies throughout the day. On both days, on-street occupancy was highest during the early periods peaking at 12, before sharply decreasing. Mondays loosely reflected this trend as well. Occupancies were far lower on Mondays and are highest during the 9am and 12 periods. Occupancy decreased in each successive time period but not as sharply as that witnessed on Fridays and Sundays. Los Angeles District 4 Data Analysis Report, 14

16 Across both data collection weeks, Sundays experienced higher occupancies. Average on-street occupancies peaked on Sundays at 12 at 88% occupancy. The next highest occupancy average rates of 61% were observed at 12 on Fridays and at 9am on Sundays. 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% Average Beachwood Lot Occupancy Beachwood % Friday Sunday Monday Average 9: AM 12: PM 3: PM 6: PM Figure 9. Average Beachwood Village Lot occupancy by time period, Beachwood Study Area. D. Week 1 vs. Week 2: Overall Trends and Comparisons Overall trends observed from data collected during Week 1 and Week 2 are summarized below. ADT Volume Counts: ADT volume counts were considerably higher on Saturdays, as visitors passed along Beachwood Drive, likely heading for hiking trails and places to stop to photograph the Hollywood Sign. ADT volume counts were highest from 12 to 6 during both week. During these hours, volumes were just within the operational criteria of 1,8 ADT per three-hour collection period indicated for collector streets. However, in light of the narrow nature of much of Beachwood Drive, traffic during those hours may be at the upper limit of what the street can handle comfortably. This may result in congestion and frustration among residents and visitors to the area at those times. On- and Off-Street Parking Occupancy: On- and off-street parking appears to be plentiful within the Beachwood Study Area. Los Angeles District 4 Data Analysis Report, 15

17 The highest on-street occupancy rates were recorded during the 9am and 12 time periods. Fridays experienced higher on-street occupancies averaging 65% occupancy across the day. Average on-street occupancies peaked on Fridays at 73% during the 12 time period. Beachwood Drive from Woodhaven Drive to Belden Drive, and from Westshire Drive to Glen Oak Street came under the heaviest strain in terms of parking availability. Both street segments exceeded 85% occupancy during the 9am and 12 time periods on average. Additionally, Belden Drive from Beachwood to Woodshire Drives is another location where parking availability should be monitored. At certain times at this location occupancy came close to exceeding 8%. Off-street parking at the Beachwood Village Lot was in adequate supply with an average occupancy rate of approximately 4%. Sundays at 12 experienced the highest occupancies, averaging at 88%. Los Angeles District 4 Data Analysis Report, 16

18 Lake Hollywood Park Study Area Lake Hollywood Park is located between Canyon Lake Drive and Mulholland Highway. It has a large grass field and views of the Hollywood Sign. The Park often experiences crowds with visitors gathering to take pictures of the Sign from this location. Many visitors drive to this location, but also utilize ridesharing services, such as Uber and Lyft. This seems to be causing congestion issues around the Park. Currently there is no DASH line that serves Lake Hollywood Park. This location is also a good starting point to hike up Mulholland Highway to the Mt. Lee Trail to the Sign. Mulholland Highway from Lake Hollywood Park up until Dirt Mulholland is often congested with cars, and many visitors illegally park to get a photo of the Sign. There are signs posted near the top of Mulholland Highway that indicate that there is no access to the Sign and that the road is for residents only. The unofficial restrictions do not stop all the visitors from driving up the road. Visitors can walk up Mulholland Highway until it turns into dirt up near the Deronda gate to access the Park. From there, visitors can also hike the 1-mile route to Mt. Lee to view the back of the sign. Los Angeles District 4 Data Analysis Report, 17

19 A. Week 1 vs. Week 2: Lake Hollywood Park ADT Volumes ADT counts were collected in three separate locations within the Lake Hollywood Park Study Area: along Canyon Lake Drive, and two locations along Mulholland Highway south of Ledgewood Drive. Due to a discrepancy during the first week of data collection, Week 1 data had to be recollected on Friday, September 8 th through Monday, September 11 th at Mullholland Highway. All locations are classified as local street according to the City s Department of Public Works. Unlike collector streets, there are no operational criteria standards defined by the City for ADT counts along local streets. As a reference point, the City of San Diego s Street Design Manual defines an operational criteria of 1,5 ADT on local streets. i. Canyon Lake Drive ADT volume counts were collected along Canyon Lake Drive south of Arrowhead Drive. Higher volumes were observed at this location compared to others in the Lake Hollywood Park Study Area (Figure 14). During Week 1, volumes increased on each successive day throughout the week. In contrast, volumes on Saturday and Sunday during Week 2 were far higher than on other days. Higher volumes were observed in Week 1 primarily due to Labor Day falling on Monday. Labor Day brought significantly more visitors to the area, which resulted in the highest ADT volumes at 3,17 counts over 1, additional counts compared to the corresponding Monday during Week 2. Notably, on each day volumes were in excess of the 1,5 ADT standard. This likely resulted in a significant amount of traffic congestion at this location Total ADT Volumes Canyon Lake Drive Friday (9/1) Saturday (9/2) Sunday (9/3) Monday (9/4) Friday (9/15) Saturday (9/16) Sunday (9/17) Monday (9/18) Figure 14. Total ADT volumes observed on each day, Canyon Lake Drive. Los Angeles District 4 Data Analysis Report, 18

20 Comparing both Week 1 and Week 2 reveals a similar pattern of variance in ADT volumes throughout each day (Figures 15 and 16). ADT volumes were minimal from 12am to 6am, before picking up during the morning commuting hours of 6am to 9am. Volumes then rose sharply from 9am, decreased after 6 and fell further after 9. By this time, most evening traffic had subsided. This pattern is akin to that observed at Ledgewood Drive, as well as within the Beachwood Study Area. Based on San Diego s guidelines, local streets have an estimated operational criteria of ADT per three-hour data collection period. Using this as a guideline, both Week 1 and Week 2 had ADT volumes that significantly exceeded this threshold on all days from 9am to Week 1: ADT Volumes Canyon Lake Drive 12am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 15. Week 1 ADT volumes by time period, Canyon Lake Drive. Los Angeles District 4 Data Analysis Report, 19

21 Week 2: ADT Volumes Canyon Lake Drive am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 16. Week 2 ADT volumes by time period, Canyon Lake Drive. Analyzing average ADT volumes by time period reveals the same pattern of variance throughout the day described in the previous paragraph (Figure 17). However, the data does demonstrate the effect of Labor Day falling within Week 1, which resulted in higher volumes throughout most time periods during the day. ADT volumes averaged across each week, were significantly above the ADT reference for local streets for both weeks from 9am to 9. ADT volumes observed during those hours, may be more than a two-lane street can comfortably handle, resulting in heavy congestion throughout most of the day. Los Angeles District 4 Data Analysis Report, 2

22 Week 1 vs. Week 2: ADT Volumes by Time Period Canyon Lake Drive am - 3am 3am - 6am 6am - 9am 9am am Week 1 Week 2 Figure 17. Week 1 and Week 2 average ADT volumes by time period, Canyon Lake Drive. ii. Mulholland Highway (West Side) ADT volumes were collected along the east and west sides of Mulholland Highway, south of Ledgewood Drive where the street is split into two. Due to a data collection error during Week 1, ADT counts on the west side of Mullholland Highway did not differentiate between northbound and southbound traffic. Data was recollected at this location the following week, and for the purposes of this report it is referred to as Week 1. Week 1 and Week 2 display a similar pattern in terms of ADT volumes across each week (Figure 18). Volumes rose from Fridays, stayed relatively consistent on Saturdays and Sundays, and declined significantly on Mondays, which were the least busy days for traffic at this location. According to the City s Department of Public Works, this section of Mullholland Highway is classified as a local street, meaning that the maximum ADT is 1,5. Volumes peaked on Saturday during Week 2 at 992 counts across the entire day, below the reference operational criteria for local streets. Los Angeles District 4 Data Analysis Report, 21

23 Total ADT Volumes Mulholland Highway (West Side: North & Southbound Traffic) Friday (9/8) Saturday (9/9) Sunday (9/1) Monday (9/11) Friday (9/15) Saturday (9/16) Sunday (9/17) Monday (9/18) Figure 18. Total ADT volumes observed on each day, Mulholland Highway Location 1. Comparing both Week 1 and Week 2 reveals a similar pattern of variance in ADT volumes throughout each day (Figures 19 and 2). ADT volumes were low each day from 12am to 6am, before picking up during the morning commuting hours of 6am-9am. Volumes then rose sharply from 9am and increased further during Following this, volumes started to decrease from 3, before decreasing more rapidly in each successive time period. By 9, most evening traffic had subsided. No discernable differences are apparent between data collected in Week 1 and Week 2. Based on San Diego guidelines, local streets have an operational criteria of trips per threehour data collection period. Using these guidelines, both Week 1 and Week 2 had ADT volumes that exceeded this threshold on several days, particularly on Saturdays and Sundays from 9am to 9. Los Angeles District 4 Data Analysis Report, 22

24 Week 1: Total ADT Volumes Mulholland Highway (West Side: North and Southbound Traffic) am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 19. Week 1 ADT volumes by time period, Mulholland Highway (West Side: North and Southbound Traffic). 35 Week 2: Total ADT Volumes Mulholland Hwy (West Side: North and Southbound Traffic) am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 2. Week 2 ADT volumes by time period, Mulholland Highway (West Side: North and Southbound Traffic). Los Angeles District 4 Data Analysis Report, 23

25 Aggregating data to weekly averages reveal no further differences between data collected in Week 1 and Week 2 (Figure 21). When analyzing average ADT volumes by time period, the data is shown once again to be consistent across both weeks. The highest ADT volumes were recorded during 12-3, and were also considerable during the 3-6 time periods. ADT volumes averaged across each week, exceeded the trip reference for local streets for both weeks from 12 to 6. Outside of those hours, ADT volumes appear to be manageable and not too concerning at the present time. However, policies to better manage ADT on Saturdays and Sundays between 12 and 6 would significantly improve the perceptions of traffic at this location. 35 Week 1 vs. Week 2: ADT Volumes by Time Period Mulholland Highway (West Side: North and Southbound Traffic) am - 3am 3am - 6am 6am - 9am 9am am Week 1 Week 2 Figure 21. Week 1 and Week 2 average ADT volumes by time period, Mulholland Highway (West Side: North and Southbound Traffic). iii. Mulholland Highway (East Side) Additional ADT volumes were collected along the east side portion of Mulholland Highway, south of Ledgewood Drive. The east side is a one-way street, allowing only northbound traffic. Once again, higher volumes were recorded on Saturdays and Sundays (Figure 22). Throughout each week, volumes increased from Friday going into the weekend where they leveled out on Saturdays and Sundays, and declined on Mondays. Mondays again experienced the least amount of traffic at this location. Because this location only has northbound traffic, 75 ADT, which is half of the local street standard amount, was used as a reference point. Los Angeles District 4 Data Analysis Report, 24

26 Total ADT Volumes Mulholland Highway (East Side: Northbound Traffic Only) Friday (9/8) Saturday (9/9) Sunday (9/1) Monday (9/11) Friday (9/15) Saturday (9/16) Sunday (9/17) Monday (9/18) Figure 22. Total ADT volumes observed on each day, Mulholland Highway (East Side: Northbound Traffic Only). Comparing both Week 1 and Week 2 reveals a similar pattern of variance in ADT volumes throughout each day (Figures 23 and 24). ADT volumes were low each day from 12am to 6am, before picking up during the morning commuting hours of 6am-9am. Volumes then rose sharply from 9am and increased further during Following this, volumes started to decrease from 3, before decreasing more in each successive time period. By 9, most evening traffic had subsided. No discernable differences are apparent between data collected in Week 1 and Week 2. A minor difference is observed in Week 2, where ADT volumes were not as high during 12-3 compared to Week 1, and declined more steadily from 3 onwards into the evening. Based on the San Diego guidelines, an estimated vehicles per three-hour period is tolerable for a one-way local street. ADT volumes did not exceed the San Diego guidelines for operational criteria per three-hour data collection period in either week. Los Angeles District 4 Data Analysis Report, 25

27 1 Week 1: Total ADT Volumes Mulholland Highway (East Side: Northbound Traffic Only) am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 23. Week 1 ADT volumes by time period, Mulholland Highway (East Side: Northbound Traffic Only) Week 2: Total ADT Volumes Mulholland Highway (East Side: Northbound Traffic Only) 12am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 24. Week 2 ADT volumes by time period, Mulholland Highway (East Side: Northbound Traffic Only). Los Angeles District 4 Data Analysis Report, 26

28 Aggregating data to weekly averages reveals no further differences between data collected in Week 1 and Week 2 (Figure 25). When analyzing average ADT volumes by time period, the data is shown once again to be consistent across both weeks and reaffirms the trends drawn above in the preceding paragraph. ADT volumes display a gradually rising and falling pattern peaking during 12-3 in both Week 1 and Week 2. Finally, even when averaging ADT volumes across each week, observed volumes did not exceed the San Diego guidelines for operational criteria of ADT per three-hour data collection period Week 1 vs. Week 2: ADT Volumes by Time Period Mullholland Highway (East Side: Northbound Traffic Only) 12am - 3am 3am - 6am 6am - 9am 9am am Week 1 Week 2 Figure 25. Week 1 and Week 2 average ADT volumes by time period, Mulholland Highway Location 2. B. Week 1 vs. Week 2: Lake Hollywood Park On-Street Occupancy Study On-street occupancy counts were recorded on the streets located in the western portion of the Lake Hollywood Park Study Area. The streets analyzed were Canyon Lake Drive, Tahoe Drive, and Arrowhead Drive. Time periods chosen for data collections were 9am, 12, 3, and 6. Comparing both weeks does not reveal any definitive pattern in variation across each day (Figure 26). Nevertheless, it further demonstrates the impact that Labor Day had on occupancy in the area, as it did with ADT volumes described above. On-street occupancy rates on Monday in Week 1 were 21% higher on average than the corresponding Monday during Week 2. Furthermore, a noteworthy observation is the significantly higher occupancy counts across most periods on Sunday during Week 2. This trend is not reflected across ADT volumes collected within the study area. Los Angeles District 4 Data Analysis Report, 27

29 Week 1 vs. Week 2: Total On-Street Occupancy Lake Hollywood Park Area 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % 9: am 12: 3: 6: 9: am 12: 3: 6: 9: am 12: 3: 6: Friday Sunday Monday Week 1 Week 2 Figure 26. Week 1 and Week 2 on-street occupancy, Lake Hollywood Park Study Area. Average daily on-street occupancies by day and time period are displayed below (Figure 27). Onstreet occupancies were generally low throughout each day. Sundays and Mondays exhibited similar levels of on-street occupancy Sundays experiencing slighter higher occupancies. On both days, on-street occupancy was highest during the 12 and 3 time periods. Friday witnessed significantly lower levels of on-street occupancy. The highest occupancy period across all days was 12 with an average of 36% occupancy, followed by 34% average occupancy during the 3 time period. This communicates that there is plenty of on-street occupancy throughout the day along the streets analyzed. Los Angeles District 4 Data Analysis Report, 28

30 Average Total On-Street Occupancy Lake Hollywood Park Area 1% 9% 8% 7% 6% 5% 4% 3% 2% 1% % Friday Sunday Monday Average 9: am 12: 3: 6: Figure 27. Average on-street occupancy by time period, Lake Hollywood Park Study Area. Table 6 displays average on-street occupancies by street segment within the Lake Hollywood Study Area. The street segment with the highest average occupancy rate was Canyon Lake Drive from Arrowhead Drive to Mulholland Highway. This section of Canyon Lake Drive had an average occupancy of 67% across both weeks and peaked at 77% occupancy during the 12 time period. In no time period did average occupancy rates exceed 8%. Finally, across all streets within the Lake Hollywood Study Area the average occupancy rate was 32%, indicating that onstreet parking was in adequate supply. Average On-Street Occupancy Rates: Lake Hollywood Park Location Canyon Lake Dr. from Innsdale Dr. to Lake Hollywood Dr. Canyon Lake Dr. from Lake Hollywood Dr. to Tahoe Dr. Canyon Lake Dr. from Tahoe Dr. to Arrowhead Dr. Canyon Lake Dr. from arrowhead Dr. to Mulholland Hwy. Tahoe Dr. from Canyon Lake Dr. to cul-de-sac Inventory Occupancy Rates 9:am 12: 3: 6: Avg % 23% 28% 22% 25% 19 8% 15% 11% 9% 11% 11 42% 55% 58% 33% 47% 66 58% 77% 71% 6% 67% 63 13% 12% 9% 14% 12% Los Angeles District 4 Data Analysis Report, 29

31 Arrowhead Dr. from Canyon Lake Dr. to Arrowhead Pl 44 19% 2% 17% 17% 18% Totals 235 3% 36% 34% 29% 32% Table 6. Week 1 and Week 2 Average on-street occupancy by time period, Lake Hollywood Study Area. C. Week 1 vs. Week 2: Overall Trends and Comparisons Overall trends observed from data collected during Week 1 and Week 2 are summarized below. ADT Volume Counts: ADT volume counts were considerably higher on Saturdays and Sundays along Canyon Lake Drive and Mulholland Highway. The highest volumes were observed along Canyon Lake Drive where volumes frequently exceeded more than 2,5 counts most days. During both weeks, ADT volumes at Canyon Lake Drive were significantly higher than the 1,5 ADT operational criteria established in San Diego for local streets. Additionally, based on those guidelines, ADT volumes significantly exceeded the threshold of ADT per three-hour data collection period on all days from 9am to 9. This is an area of concern and should be focused on for developing recommendations to improve congestion within the area. During both weeks, ADT volumes at Mulholland Highway Location 1, were far below the San Diego reference operational criteria for local streets. Additionally, ADT volumes when averaged across each week, exceeded the ADT reference for local streets for both weeks from 12 to 6, primarily due to increased traffic on Saturdays and Sundays. Labor Day had a significant impact on ADT volumes counts along Canyon Lake Drive only. Labor Day, which occurred on Monday during Week 1 recorded the highest volumes of all days at all locations within the study area with 3,17 vehicles counted. No sidewalks were observed at each of Mulholland Highway location where ADT volumes were collected. On-Street Parking Occupancy: On-street parking appears to be plentiful within the Lake Hollywood Park Study Area. Sundays experienced higher on-street occupancies averaging 4% across the day. Onstreet occupancy peaked on Sunday in Week 2 at 55% during the 9am and 3 time periods. Labor Day had a significant effect on on-street occupancy within the study area. On-street occupancy rates on Monday (Labor Day) during Week 1 were 21% higher on average than the corresponding Monday in Week 2. On-street occupancies were highest during the 12 and 9am periods averaging 36% and 35%, respectively across all days. Los Angeles District 4 Data Analysis Report, 3

32 Canyon Lake Drive from Arrowhead Drive to Mulholland Highway experienced the highest parking demand of all street segments observed in the study area. This section averaged 67% occupancy across both weeks and peaked at 77% occupancy during the 12 time period. Ledgewood Drive & Deronda Drive/Trail Head Study Area Deronda Drive is a narrow-drive that extends off Ledgewood Drive and winds up towards the base of Mt Lee Drive (a roadway closed to public vehicles that leads directly to the Hollywood Sign). A residential street, Deronda Drive is only wide enough for one-way traffic in either direction. The top of Deronda opens into a residential cul-de-sac and the gated roadway to Mt Lee Drive, where only city-vehicles are permitted. Though Deronda Drive is a residential street it has witnessed a significant increase in both vehicular and pedestrian traffic in recent years. As with many other neighborhoods, roadways, and locations in this region of the Hollywood Hills, increased traffic, pedestrian and vehicular, has become severe. Much of the increased traffic is related to those who are trying to capture an image of the Hollywood Sign or hike one of the many trails that weave through the hills. Mt Lee Drive is one of these trails and picture locations. Though gated at the top of Deronda, a separate, small pedestrian gateway exists, which is open to the public and allows for visitors to capture a picture of the Sign on an elevated dirt hill, located just inside the gate, or hike the Mt Lee Drive roadway that leads to the top of hill. Hikers are also able to walk trails that continue to the east side of Griffith Park, which eventually lead down to the Griffith Observatory. The cul-de-sac location at the top of Deronda has become a destination location because of its view and proximity to the Sign. Residents who reside in this area have mixed feelings toward the increased traffic. Many have voiced their frustration, including being unable to efficiently come or go from their residence, find available parking, or retain any sense of privacy. In addition, because of the narrow roadway, vehicles parking on either side create an unsafe passage for thru vehicles and pedestrians walking up Deronda. Others though have approached the issue from an alternative perspective. For example, one gentleman, known to many in the neighborhood, has transformed his driveway into a rest-stop location of sorts, selling bottled water and offering a place to rest. Another woman, who resides in the cul-de-sac, has now started renting her driveway to those who are seeking parking in order to walk up Mt Lee and capture a picture or hike. The City has now increased its parking enforcement of the area, having an officer stationed at the location during peak periods throughout the day and on weekends. Currently, the parking rules applicable to this location include No Parking from 8am 6 on Saturday-Sunday and Holidays. The area is also a preferential parking district, District No. 195, in which vehicles displaying a valid permit are exempt from the no parking on weekends and holidays ordinance. Los Angeles District 4 Data Analysis Report, 31

33 A. Week 1 vs. Week 2: Ledgewood Drive & Deronda Drive/Trail Head ADT Volumes ADT counts were collected along Ledgewood Drive and Deronda Drive. Due to a discrepancy during the first week of data collection, Week 1 data had to be recollected on Friday, September 8 th through Monday, September 11 th at Ledgewood Drive. Both locations observed are classified as local streets according to the City s Department of Public Works. Therefore, the operational criteria of 1,5 ADT, as defined by the City of San Diego, has been applied to the charts. i. Ledgewood Drive ADT volumes were collected along Ledgewood Drive east of Mulholland Highway. Ledgewood Drive recorded relatively low volumes during both weeks with marginally higher volumes observed during Week 2 (Figure 28). Both weeks exhibited the same variation in volumes across all days with higher volumes observed on Saturdays. Additionally, during both weeks volumes decreased slightly on Sundays, before further decreasing to record the lowest volumes on Mondays. ADT volumes peaked at 1,11 on Saturday during Week 2, far below the reference operational criteria for local streets Total ADT Volumes Ledgewood Drive Friday (9/8) Saturday (9/9) Sunday (9/1) Monday (9/11) Friday (9/15) Saturday (9/16) Sunday (9/17) Monday (9/18) Figure 28. Total ADT volumes observed on each day, Ledgewood Drive. Comparing both Week 1 and Week 2 reveals a similar pattern of variance in ADT volumes throughout each day (Figures 29 and 3). ADT volumes were minimal from 12am to 6am, before picking up during the morning commuting hours of 6am-9am. Volumes then rose sharply from Los Angeles District 4 Data Analysis Report, 32

34 9am, decreased after 6 and fell further after 9. By this time, most evening traffic has subsided. No discernable differences are apparent between data collected in Weeks 1 and 2. Based on San Diego guidelines, local streets have an estimated operational criteria of ADT per three-hour data collection period. Using these guidelines, both Week 1 and Week 2 had ADT volumes that exceeded this threshold on all days from 12 to 6. Additionally, Week 1 ADT volumes were at this threshold during 9am-12 on Friday through Sunday, and Week 2 exceeded the threshold during this time period on Saturday and Sunday Week 1: ADT Volumes Ledgewood Drive 12am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 29. Week 1 ADT volumes by time period, Ledgewood Drive. Los Angeles District 4 Data Analysis Report, 33

35 Week 2: ADT Volumes Ledgewood am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 3. Week 2 ADT volumes by time period, Ledgewood Drive. Aggregating data to weekly averages reveals no further differences between the data collected in Week 1 and Week 2 (Figure 31). When analyzing average ADT volumes by time period, the data is shown once again to be consistent across both Weeks 1 and 2 and exhibits the same pattern of variance throughout the day as described in the previous paragraph. ADT volumes when averaged across each week, exceeded the ADT reference for local streets for both weeks from 12 to 6. Outside of those hours, ADT volumes appear to be manageable and not too concerning at the present time. However, policies to better manage ADT on Saturdays and Sundays between 12 and 6 would significantly improve traffic congestion at this location. Los Angeles District 4 Data Analysis Report, 34

36 Week 1 vs. Week 2 ADT Volumes by Time Period Ledgewood Drive am - 3am 3am - 6am 6am - 9am 9am am Week 1 Week 2 Figure 31. Week 1 and Week 2 average ADT volumes by time period, Ledgewood Drive. ii. Deronda Drive ADT volumes were collected along Deronda Drive just south of Mt Lee Drive. Volumes generally increased throughout each week with Week 1 exhibiting more variation in volumes from day to day (Figure 32). In Week 1, ADT volumes were consistent on Friday and Saturday, increased significantly on Sunday, and declined on Monday. In comparison, Week 2 had more consistent volumes across Friday, Saturday and Sunday, before decreasing on Monday. Sundays in both data collection periods experienced the largest volumes peaking at 579 counts on Sunday during Week 2 that recorded marginally higher volumes by approximately 2 more counts. ADT volumes on each day were far below the reference operational criteria for local streets. Los Angeles District 4 Data Analysis Report, 35

37 Total ADT Volumes Deronda Drive Friday (9/1) Saturday (9/2) 418 Sunday (9/3) 333 Monday (9/4) Friday (9/15) Saturday (9/16) Sunday (9/17) 45 Monday (9/18) Figure 32. Total ADT volumes observed on each day, Deronda Drive Study Area. Comparing Week 1 and Week 2 reveals a noticeable difference in the variation of ADT volumes throughout each day (Figures 33 and 34). During Week 1, ADT volumes were low from 12am to 6am, before picking up during the morning commuting hours of 6am-9am. ADT volumes then rose sharply from 9am-12, before dramatically falling during the 12-3 period. Following this, volumes were consistent until the end of the day. In contrast, Week 2 displayed the same pattern up to and including the 9am-12 period. Following this period, ADT volumes increased further and peaked from 12 to 6, before declining during the evening hours. In addition to ADT volumes being significantly below reference guidelines, volumes were far below the operational criteria of ADT per three-hour data collection period identified above. As such, congestion at this location of Deronda Drive does not appear to be a major issue. However, because Deronda Drive leads to a cul-de-sac, congestion is more likely as a result of cars turning around at the top. Los Angeles District 4 Data Analysis Report, 36

38 Week 1: ADT Volumes Deronda Drive am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 33. Week 1 ADT volumes by time period, Deronda Drive Week 2: ADT Volumes Deronda Drive 12am - 3am 3am - 6am 6am - 9am 9am am Friday Saturday Sunday Monday Figure 34. Week 2 ADT volumes by time period, Deronda Drive. Los Angeles District 4 Data Analysis Report, 37

39 Aggregating data to weekly averages reveal no further differences between data collected in Week 1 and Week 2 (Figure 35). Analyzing average ADT volumes by time period further indicates the comparatively higher ADT volumes observed during Week 2, and the earlier peak of ADT volumes that occurred in Week 1 during the 9am-12 period. Finally, averaging ADT volumes across each week further indicates that congestion at this location may not be a major issue. However, it is possible that traffic occurs due to the cul-de-sac at the north end of the road Week 1 vs. Week 2: ADT Volumes by Time Period Deronda Drive 12am - 3am 3am - 6am 6am - 9am 9am am Week 1 Week 2 Figure 35. Week 1 and Week 2 average ADT volumes by time period, Deronda Drive. B. Week 1 vs. Week 2: Deronda Drive Pedestrian & Bicycle Counts Pedestrian and bikes counts were collected at the Deronda Drive trailhead located near Mt. Lee Drive. Data was collected over the same two-week period on Fridays, Sundays and Mondays for the following three-hour time periods AM (7am-11am), Midday (11am-3), and PM (3-7). i. Pedestrian Counts Pedestrian IN and OUT values correspond to pedestrians entering and exiting the park at this location. IN, OUT and NET pedestrian movements are presented below (Figure 36). Across both weeks, Sundays experienced more pedestrians entering Griffith Park at this location peaking at 467 entry counts on Sunday during Week 2. In both Week 1 and Week 2, Friday was the day with the lowest number of pedestrians IN counts. Week 1 experienced slightly more pedestrian activity. Finally, on average the number of pedestrians exiting is slightly higher than those entering. This is likely due to hikers exiting the park at a different point rather than returning via same location. Los Angeles District 4 Data Analysis Report, 38