ITE Journal - August 2020 - 46

and delays while providing the ability to manage routine traffic
more efficiently. At the same time, it can meet public expectations
from local and state agencies. It would also enhance the ability to
manage traffic flow and much needed capacity, especially during
incidents when freeway main lanes are closed and freeway traffic is
forced to use the service roads to go through the traffic signal at the
crossing arterial.
The concept involves a relatively simple geometric modification
of the intersection by simply swapping the left-turn movement

lanes with each other as shown in Figures 1a (existing layout), 2a
(proposed layout), 1b (existing cross section) and 2b (proposed cross
section). The figures illustrate how both eastbound left-turn and
westbound left-turn traffic are shifted to the left as they approach
the intersection, and then are aligned with what was the westbound
left-turn lane and eastbound left-turn lane, respectively, as shown in
the figures.
As shown in Figure 3, each left-turn movement would have
at least two indications, one at near side intersection indicated as

Figure 2a. Proposed Flipped Left Diamond Interchange Layout: Where left-turn lanes on Marine Creek Parkway in advance of the Loop 820 frontage
road intersections are constructed to provide left-turn storage and transition where these advance left-turn lanes will be aligned with the left-turn lanes
located in each direction between the Loop 820 service roads as shown in the figure above. Note: This proposed alignment allows for both left-turns to run
simultaneously regardless of level of left-turning traffic volume as they do not intersect, cross, or block each other's path.

Figure 2b. Proposed Flipped Left Diamond Interchange Cross Section: this figure represents Flipped Left Diamond Interchange where eastbound left-turn
traffic is shifted over to the lane that used to be a westbound left-turn lane, and vice versa for the westbound left-turn traffic.
46

Au gust 2020

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ITE Journal - August 2020

Table of Contents for the Digital Edition of ITE Journal - August 2020

ITE Journal - August 2020 - Cover1
ITE Journal - August 2020 - Cover2
ITE Journal - August 2020 - 3
ITE Journal - August 2020 - 4
ITE Journal - August 2020 - 5
ITE Journal - August 2020 - 6
ITE Journal - August 2020 - 7
ITE Journal - August 2020 - 8
ITE Journal - August 2020 - 9
ITE Journal - August 2020 - 10
ITE Journal - August 2020 - 11
ITE Journal - August 2020 - 12
ITE Journal - August 2020 - 13
ITE Journal - August 2020 - 14
ITE Journal - August 2020 - 15
ITE Journal - August 2020 - 16
ITE Journal - August 2020 - 17
ITE Journal - August 2020 - 18
ITE Journal - August 2020 - 19
ITE Journal - August 2020 - 20
ITE Journal - August 2020 - 21
ITE Journal - August 2020 - 22
ITE Journal - August 2020 - 23
ITE Journal - August 2020 - 24
ITE Journal - August 2020 - 25
ITE Journal - August 2020 - 26
ITE Journal - August 2020 - 27
ITE Journal - August 2020 - 28
ITE Journal - August 2020 - 29
ITE Journal - August 2020 - 30
ITE Journal - August 2020 - 31
ITE Journal - August 2020 - 32
ITE Journal - August 2020 - 33
ITE Journal - August 2020 - 34
ITE Journal - August 2020 - 35
ITE Journal - August 2020 - 36
ITE Journal - August 2020 - 37
ITE Journal - August 2020 - 38
ITE Journal - August 2020 - 39
ITE Journal - August 2020 - 40
ITE Journal - August 2020 - 41
ITE Journal - August 2020 - 42
ITE Journal - August 2020 - 43
ITE Journal - August 2020 - 44
ITE Journal - August 2020 - 45
ITE Journal - August 2020 - 46
ITE Journal - August 2020 - 47
ITE Journal - August 2020 - 48
ITE Journal - August 2020 - 49
ITE Journal - August 2020 - 50
ITE Journal - August 2020 - Cover3
ITE Journal - August 2020 - Cover4
https://www.nxtbook.com/ygsreprints/ITE/ITE_Oct2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_Sept2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_Aug2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_July2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_June2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_May2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_April2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_March2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_February2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_January2020
https://www.nxtbook.com/ygsreprints/ITE/ITE_December2019
https://www.nxtbook.com/ygsreprints/ITE/G110939_ITE_November2019
https://www.nxtbook.com/ygsreprints/ITE/G110110_ITE_October2019
https://www.nxtbook.com/ygsreprints/ITE/G110109_ITE_September2019
https://www.nxtbook.com/ygsreprints/ITE/G108559_ITE_August2019
https://www.nxtbook.com/ygsreprints/ITE/G108250_ITE_July2019
https://www.nxtbook.com/ygsreprints/ITE/G107225_ITE_June2019
https://www.nxtbook.com/ygsreprints/ITE/G104039_ITE_May2019
https://www.nxtbook.com/ygsreprints/ITE/G104038_ITE_April2019
https://www.nxtbook.com/ygsreprints/ITE/G104036_ITE_March2019
https://www.nxtbook.com/ygsreprints/ITE/G103582_ITE_February2019
https://www.nxtbook.com/ygsreprints/ITE/G102868_ITE_January2019
https://www.nxtbook.com/ygsreprints/ITE/G100155_ITE_December2018
https://www.nxtbook.com/ygsreprints/ITE/G100154_ITE_November2018
https://www.nxtbook.com/ygsreprints/ITE/G99495_ITE_October2018
https://www.nxtbook.com/ygsreprints/ITE/G98028_ITE_September2018
https://www.nxtbook.com/ygsreprints/ITE/G97366_ITE_August2018
https://www.nxtbook.com/ygsreprints/ITE/G96287_ITE_July2018
https://www.nxtbook.com/ygsreprints/ITE/G94315_ITE_June2018
https://www.nxtbook.com/ygsreprints/ITE/G93877_ITE_May2018
https://www.nxtbook.com/ygsreprints/ITE/G93065_ITE_Apr2018
https://www.nxtbook.com/ygsreprints/ITE/G91484_ITE_Mar2018
https://www.nxtbook.com/ygsreprints/ITE/G89434_ITE_Feb2018
https://www.nxtbook.com/ygsreprints/ITE/G86608_ITE_Jan2018
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